diff --git a/browser_patches/firefox/build.sh b/browser_patches/firefox/build.sh
index 8875c8f8f0..98623d7b9f 100755
--- a/browser_patches/firefox/build.sh
+++ b/browser_patches/firefox/build.sh
@@ -2,7 +2,7 @@
 set -e
 set +x
 
-RUST_VERSION="1.49.0"
+RUST_VERSION="1.51.0"
 CBINDGEN_VERSION="0.19.0"
 # Certain minimal SDK Version is required by firefox
 MACOS_SDK_VERSION="10.12"