diff --git a/sdks/python/tox.ini b/sdks/python/tox.ini
index 725adb0b1940..ad5d7ec5505e 100644
--- a/sdks/python/tox.ini
+++ b/sdks/python/tox.ini
@@ -172,7 +172,7 @@ commands =
 
 
 [testenv:docs]
-extras = test,gcp,docs,interactive,dataframe
+extras = test,gcp,docs,interactive,dataframe,dask
 deps =
   Sphinx==7.4.7
   sphinx_rtd_theme==3.0.1