diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index 482d61f..5233e74 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -12,4 +12,7 @@ jobs:
     with:
       # temporary: disable script validation ... connector uses a variable not compatible with 11.4!
       mvnArgs: '-Divy.script.validation.skip=true'
-
+      # temporary: use 11.3 until root cause of failing tests on 11.4 is known
+      ivyPluginVersion: 11.3.0
+      testerVersion: 11.3.0
+      ivyVersion: nightly-11.3