diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 49e4268..53b33e2 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -10,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
       - name: Setup Java
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@91d3aa4956ec4a53e477c4907347b5e3481be8c9 # v2
         with:
           distribution: 'adopt'
           java-version: '11'