diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b169731..42f4bed 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,7 +38,7 @@ jobs:
       - name: Get required packages for Blender
         run: |
           sudo apt-get update -qq
-          sudo apt-get install -y blender wget python3 python3-pip zip libglu1 libfreetype6 libglib2.0-0 libsm6 libxrender1 libxext6
+          sudo apt-get install -y blender wget python3 python3-pip zip libglu1 libfreetype6
 
       - name: Get required pip packages
         run: pip3 install -r requirements.txt
diff --git a/tests/python/screencast_keys_test/common.py b/tests/python/screencast_keys_test/common.py
index bcbe0f6..1951f65 100644
--- a/tests/python/screencast_keys_test/common.py
+++ b/tests/python/screencast_keys_test/common.py
@@ -52,7 +52,12 @@ def operator_exists(idname):
         op_as_string(idname)
         return True
     except:
-        return False
+        try:
+            from bpy.ops import _op_as_string
+            _op_as_string(idname)
+            return True
+        except:
+            return False
 
 
 def menu_exists(idname):