diff --git a/requirements.txt b/requirements.txt
index c0dee28f..273d16cc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,5 @@ python-dateutil
 PyYAML==6.0.1
 six>=1.16.0
 stevedore==5.1.0 # Apache-2.0
-ujson>=1.35 # BSD License
+ujson==5.8.0 # BSD License
 yaql>=1.1.0 # Apache-2.0