diff --git a/docs/conf.py b/docs/conf.py
index 7a12110a..9ec002df 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,6 +14,8 @@
 import os
 import sys
 import shutil
+import collections
+
 
 ROOT_DIR = os.path.abspath(os.path.join(__file__, "..", ".."))
 sys.path.insert(0, ROOT_DIR)
@@ -24,6 +26,9 @@
 import wgpu.gui  # noqa: E402
 
 
+# Hack to get napoleon sphynx ext working
+collections.Callable = collections.abc.Callable
+
 # -- Tests -------------------------------------------------------------------
 
 # Ensure that all classes are references in the alphabetic list,