diff --git a/.github/workflows/proof.yml b/.github/workflows/proof.yml
index 9b3c741..474826a 100644
--- a/.github/workflows/proof.yml
+++ b/.github/workflows/proof.yml
@@ -26,7 +26,7 @@ jobs:
         with:
           prefix-key: v2-rust
 
-      - uses: buildjet/cache@v3
+      - uses: buildjet/cache@v4
         with:
           path: ~/.local/share/ark-srs
           key: buildjet-ark-srs-${{ hashFiles('**/*.bin') }}