diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 146a1b37f..8c6fc00d6 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -52,6 +52,6 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
         with:
           directories: src,ext
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           file: lcov.info
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index 73a1826ca..154cf7b76 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -25,6 +25,6 @@ jobs:
           DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }} # For authentication with SSH deploy key
         run: julia --project=docs/ --code-coverage=user docs/make.jl
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           file: lcov.info
diff --git a/.github/workflows/Downstream.yml b/.github/workflows/Downstream.yml
index b977c8409..4ca8be041 100644
--- a/.github/workflows/Downstream.yml
+++ b/.github/workflows/Downstream.yml
@@ -57,6 +57,6 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
         with:
           directories: src,ext
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           file: lcov.info