diff --git a/.github/workflows/Windows-CI.yml b/.github/workflows/Windows-CI.yml
index aedb1ed4d..de390c251 100644
--- a/.github/workflows/Windows-CI.yml
+++ b/.github/workflows/Windows-CI.yml
@@ -85,7 +85,7 @@ jobs:
             !${{ env.VCPKG_ROOT }}/installed
           # The key is composed in a way that it gets properly invalidated whenever a different version of vcpkg is being used.
           key: |
-            ${{ os.release }}-${{ hashFiles( './engine/vcpkg.json' )}}
+            ${{ matrix.os }}-${{ hashFiles( './engine/vcpkg.json' )}}
 
       - name: install-vcpkg
         if: steps.cache.outputs.cache-hit != 'true'
diff --git a/.github/workflows/Windows-Release.yml b/.github/workflows/Windows-Release.yml
index 708dcc0bf..0c636f833 100644
--- a/.github/workflows/Windows-Release.yml
+++ b/.github/workflows/Windows-Release.yml
@@ -96,7 +96,7 @@ jobs:
             !${{ env.VCPKG_ROOT }}/installed
           # The key is composed in a way that it gets properly invalidated whenever a different version of vcpkg is being used.
           key: |
-            ${{ os.release }}-${{ hashFiles( './engine/vcpkg.json' )}}
+            ${{ matrix.os }}-${{ hashFiles( './engine/vcpkg.json' )}}
 
       - name: install-vcpkg
         if: steps.cache.outputs.cache-hit != 'true'