diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 53c7f34c..34242c51 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,13 +18,13 @@ jobs:
     steps:
       # Cancel any previous runs for the same branch that are still running.
       - name: 'Cancel previous runs'
-        uses: styfle/cancel-workflow-action@85880fa0301c86cca9da44039ee3bb12d3bedbfa
+        uses: styfle/cancel-workflow-action@3155a141048f8f89c06b4cdae32e7853e97536bc
         with:
           access_token: ${{ github.token }}
       - name: 'Check out repository'
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       - name: 'Set up JDK ${{ matrix.java }}'
-        uses: actions/setup-java@f2beeb24e141e01a676f977032f5a29d81c9e27e
+        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654
         with:
           java-version: ${{ matrix.java }}
           distribution: 'zulu'