diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc4f1af91c2be..2c59ea0380153 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -103,6 +103,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           workspaces: ${{ env.DEV_DRIVE }}/uv
+          save-if: ${{ github.ref == 'refs/heads/main' }}
         env:
           CARGO_HOME: ${{ env.DEV_DRIVE }}/.cargo
           RUSTUP_HOME: ${{ env.DEV_DRIVE }}/.rustup