diff --git a/requirements.txt b/requirements.txt
index 73654d8..6400980 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ mdurl==0.1.2
 more-itertools==10.5.0
 mypy==1.11.2
 mypy-extensions==1.0.0
-nh3==0.2.18
+nh3==0.2.21
 packaging==24.1
 pkginfo==1.11.1
 platformdirs==4.3.6