diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3bae760c..b7e5b57b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -169,7 +169,7 @@ jobs:
         #
         #            Also make sure to update the MSRV in the cargo-semver-checks-action CI:
         #            https://github.com/obi1kenobi/cargo-semver-checks-action/blob/main/.github/workflows/test-action.yml#L18
-        toolchain: ["1.77", "1.78", "1.79", "1.80", "1.81", "stable", "beta"]
+        toolchain: ["1.80", "1.81", "stable", "beta"]
         experimental: [false]
         include:
           - toolchain: "nightly"
@@ -319,8 +319,8 @@ jobs:
     needs:
       - build-binary
     env:
-      OLDER_RUST: "1.77"  # Rust 1.77 uses rustdoc v28
-      NEWER_RUST: "1.80"  # Rust 1.80 uses rustdoc v30
+      OLDER_RUST: "1.81"  # Rust 1.81 uses rustdoc v32
+      NEWER_RUST: "1.82"  # Rust 1.82 uses rustdoc v33
     steps:
       - name: Put env vars in outputs
         id: vars
@@ -1742,7 +1742,7 @@ jobs:
         id: toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
-          toolchain: "1.76"
+          toolchain: "1.79"
           rustflags: ""
           cache: false
 
@@ -1785,7 +1785,7 @@ jobs:
       - name: Check output
         run: |
           cd semver
-          EXPECTED="$(echo -e "error: rustc version is not high enough: >=1.77.0 needed, got 1.76.0")"
+          EXPECTED="$(echo -e "error: rustc version is not high enough: >=1.80.0 needed, got 1.79.0")"
           RESULT="$(cat output | grep 'error: rustc version')"
           diff <(echo "$RESULT") <(echo "$EXPECTED")
 
diff --git a/Cargo.toml b/Cargo.toml
index 9cc144cc..44c1bf1f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,14 +9,14 @@ repository = "https://github.com/obi1kenobi/cargo-semver-checks"
 readme = "./README.md"
 keywords = ["semver", "linter", "check", "crate", "cargo"]
 categories = ["command-line-utilities", "development-tools::cargo-plugins"]
-rust-version = "1.77"
+rust-version = "1.80"
 exclude = [".github/", "brand/", "scripts/", "test_crates/", "test_outputs/", "tests/"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 trustfall = "0.7.1"
-trustfall_rustdoc = { version = "0.16.4", default-features = false, features = ["v28", "v29", "v30", "v32", "v33", "v34", "v35", "v36", "rayon", "rustc-hash"] }
+trustfall_rustdoc = { version = "0.16.4", default-features = false, features = ["v30", "v32", "v33", "v34", "v35", "v36", "rayon", "rustc-hash"] }
 clap = { version = "4.5.17", features = ["derive", "cargo"] }
 serde_json = "1.0.128"
 anyhow = "1.0.89"
diff --git a/src/config.rs b/src/config.rs
index 4dd0a3d2..be99b071 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -37,7 +37,7 @@ impl GlobalConfig {
         Self {
             level: None,
             handlebars: make_handlebars_registry(),
-            minimum_rustc_version: semver::Version::new(1, 77, 0),
+            minimum_rustc_version: semver::Version::new(1, 80, 0),
             stdout: AutoStream::new(Box::new(std::io::stdout()), stdout_choice),
             stderr: AutoStream::new(Box::new(std::io::stderr()), stderr_choice),
             feature_flags: HashSet::new(),