diff --git a/requirements.txt b/requirements.txt
index 3e2cb63..772c6b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ openstep-plist==0.3.0.post1
 opentype-feature-freezer==1.32.2
 opentype-sanitizer==9.0.0
 opentypespec==1.9.1
-orjson==3.8.14
+orjson==3.9.15
 outcome==1.2.0
 packaging==23.1
 picosvg==0.21.0