diff --git a/.github/workflows/action.yml b/.github/workflows/action.yml
index 9819951..6050870 100644
--- a/.github/workflows/action.yml
+++ b/.github/workflows/action.yml
@@ -13,7 +13,7 @@ jobs:
           - macOS-latest
         nim-version:
           - stable
-          - devel
+          # - devel
     steps:
     - name: Checkout
       uses: actions/checkout@v2
@@ -46,3 +46,4 @@ jobs:
         nim lexerTests
         nim jsonTests
         nim domTests
+        nim serializationTests