diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 43903caa..aba38800 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -53,7 +53,7 @@ jobs:
         fetch-depth: 0
 
     - name: Cache conda packages
-      uses: actions/cache@v5
+      uses: actions/cache@v6
       env:
         # increment to reset cache
         CACHE_NUMBER: 0