diff --git a/requirements.txt b/requirements.txt
index 438f5e7a..b1b81403 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ mercurial==5.6.1
 microannotate==0.0.24
 mozci==1.12.6
 numpy==1.20.1
-orjson==3.4.8
+orjson==3.5.0
 ortools==8.1.8487
 pandas==1.2.2
 psutil==5.8.0