diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 02cf603..2ac1d62 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,7 @@ jobs:
       with:
         python-version: ${{ env.PY_VER }}
     - name: Cache pip
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       id: cache-pip
       with:
         path: ${{ env.pythonLocation }}
@@ -52,7 +52,7 @@ jobs:
         version: ${{ steps.read_toml.outputs.value }}
         show-versioninfo: 'true'
     - name: Cache Julia packages
-      uses: actions/cache/restore@v3
+      uses: actions/cache/restore@v4
       id: cache-julia
       with:
         path: |
@@ -66,7 +66,7 @@ jobs:
       run: |
         julia --project=@. --color=yes -e 'using Pkg, Dates; Pkg.instantiate(); Pkg.precompile(); Pkg.gc(collect_delay=Day(0))'
     - name: Save Julia packages
-      uses: actions/cache/save@v3
+      uses: actions/cache/save@v4
       if: ${{ steps.cache-julia.outputs.cache-hit != 'true' }}
       with:
         path: |
diff --git a/.github/workflows/linkcheck.yml b/.github/workflows/linkcheck.yml
index 329be9a..7c345a9 100644
--- a/.github/workflows/linkcheck.yml
+++ b/.github/workflows/linkcheck.yml
@@ -30,7 +30,7 @@ jobs:
         with:
           python-version: ${{ env.PY_VER }}
       - name: Cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         id: cache-pip
         with:
           path: ${{ env.pythonLocation }}