diff --git a/bench/requirements.txt b/bench/requirements.txt
index c4b986c..6b46e36 100644
--- a/bench/requirements.txt
+++ b/bench/requirements.txt
@@ -1,4 +1,4 @@
-msgspec==0.20.0
+msgspec==0.21.1
 orjson==3.11.8
 pysimdjson @ git+https://github.com/nineteendo/pysimdjson@15ec44595d7ba97b5712b719cb6a687969c5b1cf
 tabulate==0.9.0