diff --git a/requirements_dev.txt b/requirements_dev.txt
index feb844a..3157e7a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -37,7 +37,7 @@ Sanic-Cors==0.9.8
 Sphinx==2.1.1
 thrift==0.11.0
 tox==3.11.1
-ujson==1.35
+ujson==5.4.0
 urllib3==1.25.2
 watchdog==0.9.0
 wheel==0.33.4
\ No newline at end of file
diff --git a/setup.py b/setup.py
old mode 100755
new mode 100644
index 4b2ddc0..2103bfc
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@
     "inflection==0.3.1",
     "sanic-cors==0.9.8",
     "cachetools==3.1.0",
-    "ujson==1.35",
+    "ujson==5.4.0",
     "dnspython==1.15.0",
     "dnspython3==1.15.0",
     "pyYAML==5.1",