diff --git a/.github/workflows/build-linux.yml b/.github/workflows/build-linux.yml
index 301e3132..3692c10c 100644
--- a/.github/workflows/build-linux.yml
+++ b/.github/workflows/build-linux.yml
@@ -46,7 +46,7 @@ jobs:
           make
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: verifypn-linux64
           path: build/verifypn/bin/verifypn-linux64
@@ -59,7 +59,7 @@ jobs:
           make
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: verifypn-mcc-linux64
           path: build/verifypn/bin/verifypn-linux64
diff --git a/.github/workflows/build-macos-arm.yml b/.github/workflows/build-macos-arm.yml
index 07e5b69d..1139c399 100644
--- a/.github/workflows/build-macos-arm.yml
+++ b/.github/workflows/build-macos-arm.yml
@@ -41,7 +41,7 @@ jobs:
           CXX: g++-14
           
       - name: Upload artifacts 
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: verifypn-arm64
           path: '${{runner.workspace}}/build/verifypn/bin/verifypn-osx64'
diff --git a/.github/workflows/build-macos.yml b/.github/workflows/build-macos.yml
index ad8ad0ce..a1934f91 100644
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -37,11 +37,11 @@ jobs:
           cmakeGenerator: UnixMakefiles
           buildDirectory: '${{runner.workspace}}/build'
         env:
-          CC: gcc-11
-          CXX: g++-11
+          CC: gcc-14
+          CXX: g++-14
           
       - name: Upload artifacts 
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: verifypn-osx64
           path: '${{runner.workspace}}/build/verifypn/bin/verifypn-osx64'
diff --git a/.github/workflows/build-win.yml b/.github/workflows/build-win.yml
index 01612d07..f5def5b6 100644
--- a/.github/workflows/build-win.yml
+++ b/.github/workflows/build-win.yml
@@ -43,7 +43,7 @@ jobs:
           cmakeGenerator: UnixMakefiles
           buildDirectory: '${{runner.workspace}}/build'     
       - name: Upload artifacts 
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: verifypn-win64
           path: '${{runner.workspace}}/build/verifypn/bin/verifypn-win64.exe'