diff --git a/.github/workflows/BuildDeploy.yml b/.github/workflows/BuildDeploy.yml
index 2533eec..a219d39 100644
--- a/.github/workflows/BuildDeploy.yml
+++ b/.github/workflows/BuildDeploy.yml
@@ -42,7 +42,7 @@ jobs:
       - run: echo 'SemVer2=${{ steps.nbgv.outputs.SemVer2 }}'
 
       - name: 'Cache: .nuke/temp, ~/.nuget/packages'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             .nuke/temp
diff --git a/.github/workflows/BuildOnly.yml b/.github/workflows/BuildOnly.yml
index 86be818..52e6b30 100644
--- a/.github/workflows/BuildOnly.yml
+++ b/.github/workflows/BuildOnly.yml
@@ -30,7 +30,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: 'Cache: .nuke/temp, ~/.nuget/packages'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             .nuke/temp