diff --git a/.github/workflows/valgrind.yml b/.github/workflows/valgrind.yml
index a8b123a..f03aeb7 100644
--- a/.github/workflows/valgrind.yml
+++ b/.github/workflows/valgrind.yml
@@ -14,7 +14,7 @@ jobs:
         with:
           submodules: true
       - name: install valgrind
-        run: sudo apt-get install valgrind
+        run: sudo apt-get update && sudo apt-get install valgrind
       - name: build
         run: |
           make BUILD_TYPE=RelWithDebInfo