diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5cc7cd9..04f273d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         php: [7.4]
-        branch: [REL1_35]
+        branch: [REL1_35, REL1_36, REL1_37, REL1_38]
 
     env:
       branch: ${{ matrix.branch }}