diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e79ba95150..c26b18d69c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -52,9 +52,9 @@ jobs:
 
     ###############################################################################
     # Collecting build artifacts...
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
-        name: Rebol-CI-${{github.run_id}}
+        name: Rebol-CI-${{github.run_id}}-${{ matrix.runs-on }}
         path: ./rebol3-*.exe
 
   linux:
@@ -104,9 +104,9 @@ jobs:
       #    mv ./build/rebol3-bulk-x64-libc-clang ./rebol3-bulk-x64-libc-clang
       #    gzip -9 ./rebol3-bulk-x64-libc-clang
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
-          name: Rebol-CI-${{github.run_id}}
+          name: Rebol-CI-${{github.run_id}}-${{ matrix.runs-on }}
           path: ./rebol3-*.gz
 
   macos:
@@ -143,7 +143,7 @@ jobs:
           mv ./build/rebol3-bulk-macos-x64 ./rebol3-bulk-macos-x64
           gzip -9 ./rebol3-bulk-macos-x64
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
-          name: Rebol-CI-${{github.run_id}}
+          name: Rebol-CI-${{github.run_id}}-${{ matrix.runs-on }}
           path: ./rebol3-*.gz