diff --git a/.github/workflows/testingOnPush_Linux.yaml b/.github/workflows/testingOnPush_Linux.yaml
index ab9186e..93f17b3 100644
--- a/.github/workflows/testingOnPush_Linux.yaml
+++ b/.github/workflows/testingOnPush_Linux.yaml
@@ -39,6 +39,7 @@ jobs:
     strategy:
       matrix:
         nim:
+          - '1.4.0'
           - '1.6.x'
           - '2.0.0'
           - '2.0.x'