diff --git a/server/requirements.txt b/server/requirements.txt
index 4ad596a8..6092d6b9 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -3,7 +3,7 @@ redis==7.4.0
 pyyaml==6.0.3
 jsonschema==4.26.0
 markus-autotesting-core==0.1.0
-msgspec==0.20.0
+msgspec==0.21.1
 requests==2.33.1
 psycopg2-binary==2.9.11
 supervisor==4.3.0