diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 4d8719c..0e4b0aa 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -15,15 +15,16 @@ jobs:
     env:
       WOLFRAMINIT:  -entitlement ${{ secrets.WOLFRAM_LICENSE_ENTITLEMENT_ID }} -pwfile !cloudlm.wolfram.com
     steps:
-      - uses: actions/checkout@v2
-      - uses: julia-actions/setup-julia@v1
-      - uses: julia-actions/cache@v1
+      - uses: actions/checkout@v5
+      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v5
         with:
-          file: lcov.info
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   MacOS:
     runs-on: macos-latest
@@ -31,7 +32,7 @@ jobs:
       WOLFRAMINIT:  -entitlement ${{ secrets.WOLFRAM_LICENSE_ENTITLEMENT_ID }} -pwfile !cloudlm.wolfram.com
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
 
       # we don't cache the installation, as it doesn't play nice with spotlight
       - name: Install Wolfram Engine
@@ -41,14 +42,15 @@ jobs:
           brew install --cask wolfram-engine
           echo 'Installed Wolfram Engine.'
 
-      - uses: julia-actions/setup-julia@v1
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v5
         with:
-          file: lcov.info
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   Windows:
     runs-on: windows-latest
@@ -60,11 +62,11 @@ jobs:
       WOLFRAMINIT:  -entitlement ${{ secrets.WOLFRAM_LICENSE_ENTITLEMENT_ID }} -pwfile !cloudlm.wolfram.com
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
 
       - name: Cache/restore Wolfram Engine install
         id: cache-restore
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         env:
           WOLFRAMENGINE_INSTALLATION_DIRECTORY: '${{ runner.temp }}\${{ env.WOLFRAMENGINE_INSTALLATION_SUBDIRECTORY }}'
         with:
@@ -99,14 +101,15 @@ jobs:
           echo 'Installing Wolfram Engine...'
           Start-Process "msiexec.exe" -ArgumentList $MSIArguments -Wait -NoNewWindow
           echo 'Installed Wolfram Engine.'
-      - uses: julia-actions/setup-julia@v1
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
         env:
           JULIA_WOLFRAM_DIR: '${{ runner.temp }}\${{ env.WOLFRAMENGINE_INSTALLATION_SUBDIRECTORY }}'
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v5
         with:
-          file: lcov.info
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}