diff --git a/docs/requirements.txt b/docs/requirements.txt
index 587288c..5d3295b 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -7,3 +7,4 @@ docrepr
 matplotlib
 stack_data
 pytest<7
+typing_extensions
diff --git a/setup.cfg b/setup.cfg
index 99b3498..274e338 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -73,7 +73,6 @@ test_extra =
     numpy>=1.19
     pandas
     trio
-    typing_extensions
 all =
     %(black)s
     %(doc)s