diff --git a/.github/workflows/clojure.yml b/.github/workflows/clojure.yml
index 6325d8c..b05d49e 100644
--- a/.github/workflows/clojure.yml
+++ b/.github/workflows/clojure.yml
@@ -8,15 +8,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    -  uses: actions/setup-java@v3
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    -  uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
        with:
          java-version: '11'
          distribution: 'zulu'
          architecture: 'x64'
 
     - name: Install clojure tools
-      uses: DeLaGuardo/setup-clojure@master
+      uses: DeLaGuardo/setup-clojure@4c7a6f613e5089821bb3bb2a33a3ee115578580d # 13.6.1
       with:
         lein: 2.9.1