diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 6448ab3b1..665c34945 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -30,7 +30,7 @@ jobs:
           ~/.cargo/registry/index/
           ~/.cargo/registry/cache/
           ~/.cargo/git/db/
-          target/
+          **/target/
         key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}
         restore-keys: ${{ runner.os }}-cargo-