diff --git a/.github/workflows/clojure.yml b/.github/workflows/clojure.yml
index 66e0e1d..5e4b61c 100644
--- a/.github/workflows/clojure.yml
+++ b/.github/workflows/clojure.yml
@@ -6,6 +6,6 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
     - name: Test and Build
       run: lein do clean, compile :all, test, uberjar, cljsbuild once min