diff --git a/.github/workflows/quix-backend-build.yml b/.github/workflows/quix-backend-build.yml
index 0c1528b5f..89e16b459 100644
--- a/.github/workflows/quix-backend-build.yml
+++ b/.github/workflows/quix-backend-build.yml
@@ -8,7 +8,7 @@ on:
     - 'quix-backend/**'
 jobs:
   scala_tests:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         scala_version: ['2.12.17', '2.13.9']
@@ -24,6 +24,7 @@ jobs:
     - name: Build and Test
       working-directory: ./quix-backend
       run: |
+        pip3 install py4j
         sbt ++${{matrix.scala_version}} -v -Dfile.encoding=UTF-8 test publishM2
         if [[ ${{matrix.scala_version}} = '2.12.15' ]]
         then
diff --git a/quix-backend/quix-modules/quix-python-module/src/test/scala/quix/python/PythonExecutorTest.scala b/quix-backend/quix-modules/quix-python-module/src/test/scala/quix/python/PythonExecutorTest.scala
index f0491f36b..a177ce9a4 100644
--- a/quix-backend/quix-modules/quix-python-module/src/test/scala/quix/python/PythonExecutorTest.scala
+++ b/quix-backend/quix-modules/quix-python-module/src/test/scala/quix/python/PythonExecutorTest.scala
@@ -91,9 +91,8 @@ class PythonExecutorTest extends SpecWithJUnit with MustMatchers {
   "support requirements syntax for packages.install " in new ctx {
     executor.execute(script(
       code =
-        """packages.install('ujson==1.35')
+        """packages.install('ujson==5.6.0')
           |packages.install('ujson>1.0')
-          |packages.install('ujson>1.0,<1.30')
           |
           |import ujson
           |print(123)