diff --git a/.github/workflows/build-macos.yml b/.github/workflows/build-macos.yml
index 8574d526..9b28975c 100644
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: macos-latest
+        os: [macos-latest]
         architecture: [x86, x64]
 
     steps:
diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml
index e21b09e9..ff7a1e36 100644
--- a/.github/workflows/build-windows.yml
+++ b/.github/workflows/build-windows.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: windows-latest
+        os: [windows-latest]
         architecture: [x86, x64]
 
     steps: