diff --git a/Cargo.lock b/Cargo.lock
index 6f9dba3..1a245ed 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -947,9 +947,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.17.0"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f61fba1741ea2b3d6a1e3178721804bb716a68a6aeba1149b5d52e3d464ea66"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "os_pipe"
diff --git a/Cargo.toml b/Cargo.toml
index b48c0c9..f0690e4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ calypso_repl = { path = "libs/calypso_repl", version = "0.1.0" }
 calypso_base = { path = "libs/calypso_base", version = "0.1.0", default-features = false, features = ["ui"] }
 saturnvm = { path = "libs/saturnvm", version = "0.1.0" }
 tracing-subscriber = { version = "0.3.15", features = ["parking_lot", "env-filter", "json"] }
-once_cell = "1.15.0"
+once_cell = "1.19.0"
 calypso_common = { path = "libs/calypso_common", version = "0.1.0" }
 calypso_filety = { path = "libs/calypso_filety", version = "3.0.0" }
 calypso_ast = { path = "libs/calypso_ast", version = "0.1.0" }
diff --git a/libs/calypso_base/Cargo.toml b/libs/calypso_base/Cargo.toml
index ed8912d..6581781 100644
--- a/libs/calypso_base/Cargo.toml
+++ b/libs/calypso_base/Cargo.toml
@@ -12,7 +12,7 @@ rust-version = "1.66.1"
 
 [dependencies]
 lasso = { version = "0.6.0", features = ["multi-threaded"], optional = true }
-once_cell = { version = "1.15.0", optional = true }
+once_cell = { version = "1.19.0", optional = true }
 lazy_static = { version = "1.4.0", optional = true }
 termcolor = { version = "1.1.3", optional = true }
 atty = { version = "0.2.14", optional = true }