diff --git a/requirements.txt b/requirements.txt
index b7a393f..72edaf0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,3 @@
+PyJWT==2.10.0; python_version == "2.7"
+jwt==1.3.1; python_version >= "3.6"
 -e .[dev,test]