diff --git a/.github/workflows/CICD.yml b/.github/workflows/CICD.yml
index 36df67de6..01dfdd274 100644
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -1199,7 +1199,7 @@ jobs:
         ~/.cargo/bin/grcov . --output-type lcov --output-path "${COVERAGE_REPORT_FILE}" --branch --ignore build.rs --ignore "vendor/*" --ignore "/*" --ignore "[a-zA-Z]:/*" --excl-br-line "^\s*((debug_)?assert(_eq|_ne)?!|#\[derive\()"
         echo "report=${COVERAGE_REPORT_FILE}" >> $GITHUB_OUTPUT
     - name: Upload coverage results (to Codecov.io)
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v3
       # if: steps.vars.outputs.HAS_CODECOV_TOKEN
       with:
         # token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.github/workflows/GnuTests.yml b/.github/workflows/GnuTests.yml
index b524f8fde..61f30eba4 100644
--- a/.github/workflows/GnuTests.yml
+++ b/.github/workflows/GnuTests.yml
@@ -368,7 +368,7 @@ jobs:
         grcov . --output-type lcov --output-path "${COVERAGE_REPORT_FILE}" --branch --ignore build.rs --ignore "vendor/*" --ignore "/*" --ignore "[a-zA-Z]:/*" --excl-br-line "^\s*((debug_)?assert(_eq|_ne)?!|#\[derive\()"
         echo "report=${COVERAGE_REPORT_FILE}" >> $GITHUB_OUTPUT
     - name: Upload coverage results (to Codecov.io)
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v3
       with:
         file: ${{ steps.coverage.outputs.report }}
         flags: gnutests