diff --git a/requirements_extras.txt b/requirements_extras.txt
index c4e860f..d793758 100644
--- a/requirements_extras.txt
+++ b/requirements_extras.txt
@@ -18,4 +18,4 @@ cassandra-driver==3.25.0
 PyMySQL==0.9.3
 kafka-python==2.0.2
 redis==2.10.5
-ujson==1.35
+ujson==5.4.0
diff --git a/setup.py b/setup.py
index 032b461..801b142 100644
--- a/setup.py
+++ b/setup.py
@@ -91,13 +91,13 @@
     # https://packaging.python.org/en/latest/requirements.html
     install_requires=requirements,
     extras_require={
-        'redis': ['redis>=2.10,<3', 'ujson>=1.33,<2'],
+        'redis': ['redis>=2.10,<3', 'ujson>=1.33,<6'],
         'test': [
             'cassandra-driver>=3.25,<3.26',
             'PyMySQL>=0.7,<0.10',
             'kafka-python>=2.0.2,<2.1',
             'redis>=2.10,<3',
-            'ujson>=1.33,<2',
+            'ujson>=1.33,<6',
         ],
     },
 )