diff --git a/.github/workflows/workflow.yaml b/.github/workflows/workflow.yaml
index f6bd243..7d8f11b 100644
--- a/.github/workflows/workflow.yaml
+++ b/.github/workflows/workflow.yaml
@@ -31,10 +31,10 @@ jobs:
       matrix:
         os: [
             #ubuntu-18.04
-            ubuntu-20.04,
+            #ubuntu-20.04,
             #ubuntu-22.04,
             #windows-2016,
-            #windows-2019,
+            windows-2019,
             #windows-2022,
             #macos-10.15,
             #macos-11,