diff --git a/requirements.txt b/requirements.txt
index 1f3c861..1fa2b7f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -97,9 +97,7 @@ soupsieve==2.5
 testtools==2.7.1
 tlslite-ng==0.7.6
 tweepy==4.14.0
-# v4.6.0 breaks bases (which multiformats etc use)
-# https://github.com/hashberg-io/bases/issues/3
-typing-extensions==4.5.0
+typing-extensions==4.9.0
 typing-validation==1.1.0
 ujson==5.9.0
 update-checker==0.18.0