diff --git a/Cargo.lock b/Cargo.lock
index 198494929e5..373236f1883 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -819,12 +819,6 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ecdffb913a326b6c642290a0d0ec8e8d6597291acdc07cc4c9cb4b3635d44cf9"
 
-[[package]]
-name = "color_quant"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
-
 [[package]]
 name = "com"
 version = "0.6.0"
@@ -2072,17 +2066,16 @@ dependencies = [
 
 [[package]]
 name = "image"
-version = "0.24.7"
+version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f3dfdbdd72063086ff443e297b61695500514b1e41095b6fb9a5ab48a70a711"
+checksum = "a9b4f005360d32e9325029b38ba47ebd7a56f3316df09249368939562d518645"
 dependencies = [
  "bytemuck",
  "byteorder",
- "color_quant",
- "jpeg-decoder",
- "num-rational",
  "num-traits",
  "png",
+ "zune-core",
+ "zune-jpeg",
 ]
 
 [[package]]
@@ -2188,12 +2181,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "jpeg-decoder"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc0000e42512c92e31c2252315bda326620a4e034105e900c98ec492fa077b3e"
-
 [[package]]
 name = "js-sys"
 version = "0.3.69"
@@ -2498,27 +2485,6 @@ dependencies = [
  "minimal-lexical",
 ]
 
-[[package]]
-name = "num-integer"
-version = "0.1.45"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
-dependencies = [
- "autocfg",
- "num-traits",
-]
-
-[[package]]
-name = "num-rational"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
-dependencies = [
- "autocfg",
- "num-integer",
- "num-traits",
-]
-
 [[package]]
 name = "num-traits"
 version = "0.2.16"
@@ -4883,6 +4849,21 @@ dependencies = [
  "syn 2.0.48",
 ]
 
+[[package]]
+name = "zune-core"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f423a2c17029964870cfaabb1f13dfab7d092a62a29a89264f4d36990ca414a"
+
+[[package]]
+name = "zune-jpeg"
+version = "0.4.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec866b44a2a1fd6133d363f073ca1b179f438f99e7e5bfb1e33f7181facfe448"
+dependencies = [
+ "zune-core",
+]
+
 [[package]]
 name = "zvariant"
 version = "3.15.0"
diff --git a/Cargo.toml b/Cargo.toml
index 0853df671d6..8c59b92deb5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -62,23 +62,31 @@ egui_demo_lib = { version = "0.27.2", path = "crates/egui_demo_lib", default-fea
 egui_glow = { version = "0.27.2", path = "crates/egui_glow", default-features = false }
 eframe = { version = "0.27.2", path = "crates/eframe", default-features = false }
 
-#TODO(emilk): make more things workspace dependencies
 ahash = { version = "0.8.6", default-features = false, features = [
     "no-rng", # we don't need DOS-protection, so we let users opt-in to it instead
     "std",
 ] }
 backtrace = "0.3"
+bytemuck = "1.7.2"
 criterion = { version = "0.5.1", default-features = false }
 document-features = " 0.2.8"
 glow = "0.13"
+glutin = "0.31"
+glutin-winit = "0.4"
+image = { version = "0.25", default-features = false }
 log = { version = "0.4", features = ["std"] }
 nohash-hasher = "0.2"
 parking_lot = "0.12"
 puffin = "0.19"
 puffin_http = "0.16"
+ron = "0.8"
 raw-window-handle = "0.6.0"
+serde = { version = "1", features = ["derive"] }
 thiserror = "1.0.37"
 web-time = "0.2" # Timekeeping for native and web
+wasm-bindgen = "0.2"
+wasm-bindgen-futures = "0.4"
+web-sys = "0.3.58"
 wgpu = { version = "0.20.0", default-features = false, features = [
     # Make the renderer `Sync` even on wasm32, because it makes the code simpler:
     "fragile-send-sync-non-atomic-wasm",
diff --git a/crates/ecolor/Cargo.toml b/crates/ecolor/Cargo.toml
index fe4c6f444b1..6b46bc1062c 100644
--- a/crates/ecolor/Cargo.toml
+++ b/crates/ecolor/Cargo.toml
@@ -33,7 +33,7 @@ default = []
 #! ### Optional dependencies
 
 ## [`bytemuck`](https://docs.rs/bytemuck) enables you to cast `ecolor` types to `&[u8]`.
-bytemuck = { version = "1.7.2", optional = true, features = ["derive"] }
+bytemuck = { workspace = true, optional = true, features = ["derive"] }
 
 ## [`cint`](https://docs.rs/cint) enables interoperability with other color libraries.
 cint = { version = "0.3.1", optional = true }
@@ -45,4 +45,4 @@ color-hex = { version = "0.2.0", optional = true }
 document-features = { workspace = true, optional = true }
 
 ## Allow serialization using [`serde`](https://docs.rs/serde).
-serde = { version = "1", optional = true, features = ["derive"] }
+serde = { workspace = true, optional = true }
diff --git a/crates/eframe/Cargo.toml b/crates/eframe/Cargo.toml
index 33cc5ba6bfe..f992c5c66a2 100644
--- a/crates/eframe/Cargo.toml
+++ b/crates/eframe/Cargo.toml
@@ -144,8 +144,8 @@ glow = { workspace = true, optional = true }
 rwh_05 = { package = "raw-window-handle", version = "0.5.2", optional = true, features = [
   "std",
 ] }
-ron = { version = "0.8", optional = true, features = ["integer128"] }
-serde = { version = "1", optional = true, features = ["derive"] }
+ron = { workspace = true, optional = true, features = ["integer128"] }
+serde = { workspace = true, optional = true }
 
 # -------------------------------------------
 # native:
@@ -154,9 +154,7 @@ egui-winit = { workspace = true, default-features = false, features = [
   "clipboard",
   "links",
 ] }
-image = { version = "0.24", default-features = false, features = [
-  "png",
-] } # Needed for app icon
+image = { workspace = true, features = ["png"] } # Needed for app icon
 winit = { workspace = true, default-features = false, features = ["rwh_06"] }
 
 # optional native:
@@ -168,8 +166,8 @@ pollster = { version = "0.3", optional = true } # needed for wgpu
 
 # we can expose these to user so that they can select which backends they want to enable to avoid compiling useless deps.
 # this can be done at the same time we expose x11/wayland features of winit crate.
-glutin = { version = "0.31", optional = true }
-glutin-winit = { version = "0.4", optional = true }
+glutin = { workspace = true, optional = true }
+glutin-winit = { workspace = true, optional = true }
 puffin = { workspace = true, optional = true }
 wgpu = { workspace = true, optional = true, features = [
   # Let's enable some backends so that users can use `eframe` out-of-the-box
@@ -201,12 +199,12 @@ winapi = { version = "0.3.9", features = ["winuser"] }
 # -------------------------------------------
 # web:
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-bytemuck = "1.7"
+bytemuck.workspace = true
 js-sys = "0.3"
 percent-encoding = "2.1"
-wasm-bindgen = "0.2"
-wasm-bindgen-futures = "0.4"
-web-sys = { version = "0.3.58", features = [
+wasm-bindgen.workspace = true
+wasm-bindgen-futures.workspace = true
+web-sys = { workspace = true, features = [
   "BinaryType",
   "Blob",
   "Clipboard",
diff --git a/crates/eframe/src/icon_data.rs b/crates/eframe/src/icon_data.rs
index 847228f9ec0..ed514d00e1f 100644
--- a/crates/eframe/src/icon_data.rs
+++ b/crates/eframe/src/icon_data.rs
@@ -54,7 +54,7 @@ impl IconDataExt for IconData {
         image
             .write_to(
                 &mut std::io::Cursor::new(&mut png_bytes),
-                image::ImageOutputFormat::Png,
+                image::ImageFormat::Png,
             )
             .map_err(|err| err.to_string())?;
         Ok(png_bytes)
diff --git a/crates/eframe/src/native/app_icon.rs b/crates/eframe/src/native/app_icon.rs
index 90100298680..840bf367b27 100644
--- a/crates/eframe/src/native/app_icon.rs
+++ b/crates/eframe/src/native/app_icon.rs
@@ -118,7 +118,7 @@ fn set_app_icon_windows(icon_data: &IconData) -> AppIconStatus {
         if image_scaled
             .write_to(
                 &mut std::io::Cursor::new(&mut image_scaled_bytes),
-                image::ImageOutputFormat::Png,
+                image::ImageFormat::Png,
             )
             .is_err()
         {
diff --git a/crates/egui-wgpu/Cargo.toml b/crates/egui-wgpu/Cargo.toml
index 817233b88ba..1de7d1446ef 100644
--- a/crates/egui-wgpu/Cargo.toml
+++ b/crates/egui-wgpu/Cargo.toml
@@ -50,7 +50,7 @@ x11 = ["winit?/x11"]
 egui = { workspace = true, default-features = false }
 epaint = { workspace = true, default-features = false, features = ["bytemuck"] }
 
-bytemuck = "1.7"
+bytemuck.workspace = true
 document-features.workspace = true
 log.workspace = true
 thiserror.workspace = true
diff --git a/crates/egui-winit/Cargo.toml b/crates/egui-winit/Cargo.toml
index fc2b8a53620..6354b7a439f 100644
--- a/crates/egui-winit/Cargo.toml
+++ b/crates/egui-winit/Cargo.toml
@@ -73,7 +73,7 @@ accesskit_winit = { version = "0.16.0", optional = true }
 document-features = { workspace = true, optional = true }
 
 puffin = { workspace = true, optional = true }
-serde = { version = "1.0", optional = true, features = ["derive"] }
+serde = { workspace = true, optional = true }
 webbrowser = { version = "1.0.0", optional = true }
 
 [target.'cfg(any(target_os="linux", target_os="dragonfly", target_os="freebsd", target_os="netbsd", target_os="openbsd"))'.dependencies]
diff --git a/crates/egui/Cargo.toml b/crates/egui/Cargo.toml
index 909beba133a..2e8e1ddd557 100644
--- a/crates/egui/Cargo.toml
+++ b/crates/egui/Cargo.toml
@@ -95,5 +95,5 @@ document-features = { workspace = true, optional = true }
 
 log = { workspace = true, optional = true }
 puffin = { workspace = true, optional = true }
-ron = { version = "0.8", optional = true }
-serde = { version = "1", optional = true, features = ["derive", "rc"] }
+ron = { workspace = true, optional = true }
+serde = { workspace = true, optional = true, features = ["derive", "rc"] }
diff --git a/crates/egui_demo_app/Cargo.toml b/crates/egui_demo_app/Cargo.toml
index 0491f5ff934..87f787a054a 100644
--- a/crates/egui_demo_app/Cargo.toml
+++ b/crates/egui_demo_app/Cargo.toml
@@ -51,7 +51,7 @@ log.workspace = true
 
 # Optional dependencies:
 
-bytemuck = { version = "1.7.1", optional = true }
+bytemuck = { workspace = true, optional = true }
 puffin = { workspace = true, optional = true }
 puffin_http = { workspace = true, optional = true }
 # Enable both WebGL & WebGPU when targeting the web (these features have no effect when not targeting wasm32)
@@ -60,14 +60,11 @@ wgpu = { workspace = true, features = ["webgpu", "webgl"], optional = true }
 
 # feature "http":
 ehttp = { version = "0.5", optional = true }
-image = { version = "0.24", optional = true, default-features = false, features = [
-  "jpeg",
-  "png",
-] }
+image = { workspace = true, optional = true, features = ["jpeg", "png"] }
 poll-promise = { version = "0.3", optional = true, default-features = false }
 
 # feature "persistence":
-serde = { version = "1", optional = true, features = ["derive"] }
+serde = { workspace = true, optional = true }
 
 
 # native:
@@ -81,5 +78,5 @@ rfd = { version = "0.13", optional = true }
 # web:
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 wasm-bindgen = "=0.2.92"
-wasm-bindgen-futures = "0.4"
-web-sys = "0.3"
+wasm-bindgen-futures.workspace = true
+web-sys.workspace = true
diff --git a/crates/egui_demo_lib/Cargo.toml b/crates/egui_demo_lib/Cargo.toml
index d1daa5b8cfb..9a6e79dd99c 100644
--- a/crates/egui_demo_lib/Cargo.toml
+++ b/crates/egui_demo_lib/Cargo.toml
@@ -52,7 +52,7 @@ unicode_names2 = { version = "0.6.0", default-features = false } # this old vers
 chrono = { version = "0.4", optional = true, features = ["js-sys", "wasmbind"] }
 ## Enable this when generating docs.
 document-features = { workspace = true, optional = true }
-serde = { version = "1", optional = true, features = ["derive"] }
+serde = { workspace = true, optional = true }
 
 
 [dev-dependencies]
diff --git a/crates/egui_extras/Cargo.toml b/crates/egui_extras/Cargo.toml
index 372f754cc52..edbac462c94 100644
--- a/crates/egui_extras/Cargo.toml
+++ b/crates/egui_extras/Cargo.toml
@@ -45,8 +45,7 @@ http = ["dep:ehttp"]
 ##
 ## You also need to ALSO opt-in to the image formats you want to support, like so:
 ## ```toml
-## image = { version = "0.24", features = ["jpeg", "png"] } # Add the types you want support for
-
+## image = { version = "0.25", features = ["jpeg", "png"] } # Add the types you want support for
 ## ```
 image = ["dep:image"]
 
@@ -67,7 +66,7 @@ egui = { workspace = true, default-features = false, features = ["serde"] }
 
 enum-map = { version = "2", features = ["serde"] }
 log.workspace = true
-serde = { version = "1", features = ["derive"] }
+serde.workspace = true
 
 #! ### Optional dependencies
 
@@ -82,7 +81,7 @@ chrono = { version = "0.4", optional = true, default-features = false, features
 ## Enable this when generating docs.
 document-features = { workspace = true, optional = true }
 
-image = { version = "0.24", optional = true, default-features = false }
+image = { workspace = true, optional = true }
 
 # file feature
 mime_guess2 = { version = "2", optional = true, default-features = false }
diff --git a/crates/egui_extras/README.md b/crates/egui_extras/README.md
index 0ccb1de2b1e..4e5e96dce63 100644
--- a/crates/egui_extras/README.md
+++ b/crates/egui_extras/README.md
@@ -13,7 +13,7 @@ One thing `egui_extras` is commonly used for is to install image loaders for `eg
 
 ```toml
 egui_extras = { version = "*", features = ["all_loaders"] }
-image = { version = "0.24", features = ["jpeg", "png"] } # Add the types you want support for
+image = { version = "0.25", features = ["jpeg", "png"] } # Add the types you want support for
 ```
 
 ```rs
diff --git a/crates/egui_extras/src/image.rs b/crates/egui_extras/src/image.rs
index a0b042e26ae..f6301aec823 100644
--- a/crates/egui_extras/src/image.rs
+++ b/crates/egui_extras/src/image.rs
@@ -43,7 +43,7 @@ impl RetainedImage {
     /// `image_bytes` should be the raw contents of an image file (`.png`, `.jpg`, …).
     ///
     /// Requires the "image" feature. You must also opt-in to the image formats you need
-    /// with e.g. `image = { version = "0.24", features = ["jpeg", "png"] }`.
+    /// with e.g. `image = { version = "0.25", features = ["jpeg", "png"] }`.
     ///
     /// # Errors
     /// On invalid image or unsupported image format.
@@ -195,7 +195,7 @@ use egui::ColorImage;
 /// Load a (non-svg) image.
 ///
 /// Requires the "image" feature. You must also opt-in to the image formats you need
-/// with e.g. `image = { version = "0.24", features = ["jpeg", "png"] }`.
+/// with e.g. `image = { version = "0.25", features = ["jpeg", "png"] }`.
 ///
 /// # Errors
 /// On invalid image or unsupported image format.
diff --git a/crates/egui_extras/src/loaders.rs b/crates/egui_extras/src/loaders.rs
index 05df9bc8eef..d66ea483071 100644
--- a/crates/egui_extras/src/loaders.rs
+++ b/crates/egui_extras/src/loaders.rs
@@ -20,7 +20,7 @@
 ///
 /// ```toml,ignore
 /// egui_extras = { version = "*", features = ["all_loaders"] }
-/// image = { version = "0.24", features = ["jpeg", "png"] } # Add the types you want support for
+/// image = { version = "0.25", features = ["jpeg", "png"] } # Add the types you want support for
 /// ```
 ///
 /// ⚠ You have to configure both the supported loaders in `egui_extras` _and_ the supported image formats
diff --git a/crates/egui_glow/Cargo.toml b/crates/egui_glow/Cargo.toml
index 44939640cfb..29129dddc3f 100644
--- a/crates/egui_glow/Cargo.toml
+++ b/crates/egui_glow/Cargo.toml
@@ -56,7 +56,7 @@ x11 = ["winit?/x11"]
 egui = { workspace = true, default-features = false, features = ["bytemuck"] }
 egui-winit = { workspace = true, optional = true, default-features = false }
 
-bytemuck = "1.7"
+bytemuck.workspace = true
 glow.workspace = true
 log.workspace = true
 memoffset = "0.9"
@@ -74,13 +74,13 @@ winit = { workspace = true, optional = true, default-features = false, features
 
 # Web:
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-web-sys = { version = "0.3", features = ["console"] }
-wasm-bindgen = "0.2"
+web-sys = { workspace = true, features = ["console"] }
+wasm-bindgen.workspace = true
 
 
 [dev-dependencies]
-glutin = "0.31"        # examples/pure_glow
-glutin-winit = "0.4.0"
+glutin.workspace = true       # examples/pure_glow
+glutin-winit.workspace = true
 # glutin stuck on old version of raw-window-handle:
 rwh_05 = { package = "raw-window-handle", version = "0.5.2", features = [
   "std",
diff --git a/crates/egui_plot/Cargo.toml b/crates/egui_plot/Cargo.toml
index 91c4b3a50fc..bc42765ea16 100644
--- a/crates/egui_plot/Cargo.toml
+++ b/crates/egui_plot/Cargo.toml
@@ -42,4 +42,4 @@ egui = { workspace = true, default-features = false }
 ## Enable this when generating docs.
 document-features = { workspace = true, optional = true }
 
-serde = { version = "1", optional = true, features = ["derive"] }
+serde = { workspace = true, optional = true }
diff --git a/crates/emath/Cargo.toml b/crates/emath/Cargo.toml
index 99fc1b004b8..f47f281c968 100644
--- a/crates/emath/Cargo.toml
+++ b/crates/emath/Cargo.toml
@@ -30,7 +30,7 @@ default = []
 #! ### Optional dependencies
 
 ## [`bytemuck`](https://docs.rs/bytemuck) enables you to cast `emath` types to `&[u8]`.
-bytemuck = { version = "1.7.2", optional = true, features = ["derive"] }
+bytemuck = { workspace = true, optional = true, features = ["derive"] }
 
 ## Enable this when generating docs.
 document-features = { workspace = true, optional = true }
@@ -39,4 +39,4 @@ document-features = { workspace = true, optional = true }
 mint = { version = "0.5.6", optional = true }
 
 ## Allow serialization using [`serde`](https://docs.rs/serde).
-serde = { version = "1", optional = true, features = ["derive"] }
+serde = { workspace = true, optional = true }
diff --git a/crates/epaint/Cargo.toml b/crates/epaint/Cargo.toml
index 852066d046c..3588a280dc1 100644
--- a/crates/epaint/Cargo.toml
+++ b/crates/epaint/Cargo.toml
@@ -84,7 +84,7 @@ nohash-hasher.workspace = true
 parking_lot.workspace = true   # Using parking_lot over std::sync::Mutex gives 50% speedups in some real-world scenarios.
 
 #! ### Optional dependencies
-bytemuck = { version = "1.7.2", optional = true, features = ["derive"] }
+bytemuck = { workspace = true, optional = true, features = ["derive"] }
 
 ## Enable this when generating docs.
 document-features = { workspace = true, optional = true }
@@ -94,7 +94,7 @@ puffin = { workspace = true, optional = true }
 rayon = { version = "1.7", optional = true }
 
 ## Allow serialization using [`serde`](https://docs.rs/serde) .
-serde = { version = "1", optional = true, features = ["derive", "rc"] }
+serde = { workspace = true, optional = true, features = ["derive", "rc"] }
 
 # native:
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
diff --git a/crates/epaint/src/mutex.rs b/crates/epaint/src/mutex.rs
index 2c61f038f9c..157701c2be0 100644
--- a/crates/epaint/src/mutex.rs
+++ b/crates/epaint/src/mutex.rs
@@ -133,14 +133,16 @@ mod rw_lock_impl {
     /// the feature `deadlock_detection` is turned enabled, in which case
     /// extra checks are added to detect deadlocks.
     #[derive(Default)]
-    pub struct RwLock<T>(parking_lot::RwLock<T>);
+    pub struct RwLock<T: ?Sized>(parking_lot::RwLock<T>);
 
     impl<T> RwLock<T> {
         #[inline(always)]
         pub fn new(val: T) -> Self {
             Self(parking_lot::RwLock::new(val))
         }
+    }
 
+    impl<T: ?Sized> RwLock<T> {
         #[inline(always)]
         pub fn read(&self) -> RwLockReadGuard<'_, T> {
             parking_lot::RwLockReadGuard::map(self.0.read(), |v| v)
diff --git a/examples/images/Cargo.toml b/examples/images/Cargo.toml
index 092535c9125..57d552e3be4 100644
--- a/examples/images/Cargo.toml
+++ b/examples/images/Cargo.toml
@@ -21,7 +21,4 @@ env_logger = { version = "0.10", default-features = false, features = [
   "auto-color",
   "humantime",
 ] }
-image = { version = "0.24", default-features = false, features = [
-  "jpeg",
-  "png",
-] }
+image = { workspace = true, features = ["jpeg", "png"] }
diff --git a/examples/save_plot/Cargo.toml b/examples/save_plot/Cargo.toml
index c4c287c001d..d20c927b058 100644
--- a/examples/save_plot/Cargo.toml
+++ b/examples/save_plot/Cargo.toml
@@ -16,7 +16,7 @@ eframe = { workspace = true, features = [
     "__screenshot", # __screenshot is so we can dump a screenshot using EFRAME_SCREENSHOT_TO
 ] }
 egui_plot.workspace = true
-image = { version = "0.24", default-features = false, features = ["png"] }
+image = { workspace = true, features = ["png"] }
 rfd = "0.13.0"
 env_logger = { version = "0.10", default-features = false, features = [
     "auto-color",
diff --git a/examples/screenshot/Cargo.toml b/examples/screenshot/Cargo.toml
index aba066669c9..84399e4bc24 100644
--- a/examples/screenshot/Cargo.toml
+++ b/examples/screenshot/Cargo.toml
@@ -24,4 +24,4 @@ env_logger = { version = "0.10", default-features = false, features = [
     "auto-color",
     "humantime",
 ] }
-image = { version = "0.24", default-features = false, features = ["png"] }
+image = { workspace = true, features = ["png"] }