diff --git a/requirements.txt b/requirements.txt
index 53fee05..90a0111 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-jsonschema>=0.7,<4
+jsonschema>=0.7,<=4.0.1
 jsonpatch>=0.10,<2
 six
diff --git a/warlock.egg-info/requires.txt b/warlock.egg-info/requires.txt
index a97030b..ae456b8 100644
--- a/warlock.egg-info/requires.txt
+++ b/warlock.egg-info/requires.txt
@@ -1,3 +1,3 @@
-jsonschema<4,>=0.7
+jsonschema<=4.0.1,>=0.7
 jsonpatch<2,>=0.10
 six