diff --git a/src/rust/Cargo.lock b/src/rust/Cargo.lock
index 2605eff9e..baee88fb9 100644
--- a/src/rust/Cargo.lock
+++ b/src/rust/Cargo.lock
@@ -1550,12 +1550,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.20.1"
+version = "1.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82881c4be219ab5faaf2ad5e5e5ecdff8c66bd7402ca3160975c93b24961afd1"
-dependencies = [
- "portable-atomic",
-]
+checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
 
 [[package]]
 name = "openssl-probe"
@@ -2184,12 +2181,6 @@ dependencies = [
  "version_check",
 ]
 
-[[package]]
-name = "portable-atomic"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc9c68a3f6da06753e9335d63e27f6b9754dd1920d941135b7ea8224f141adb2"
-
 [[package]]
 name = "ppv-lite86"
 version = "0.2.20"
diff --git a/src/rust/Cargo.toml b/src/rust/Cargo.toml
index 40ca822bf..0c115bc95 100644
--- a/src/rust/Cargo.toml
+++ b/src/rust/Cargo.toml
@@ -43,7 +43,7 @@ extendr-api = { git = "https://github.com/extendr/extendr", rev = "1895bfc8ee223
 flume = "0.11.0"
 indenter = "0.3.3"
 ipc-channel = "0.18.3"
-once_cell = "1.20.1"
+once_cell = "1.20.2"
 rayon = "1.10.0"
 serde = { version = "1.0.210", features = ["derive"] }
 serde_json = "*"