Update core.txt

oakbani · web-flow · commit 47b67cc4bd0a · 2021-03-01T12:47:29.000+05:00
diff --git a/requirements/core.txt b/requirements/core.txt
@@ -2,4 +2,4 @@ jsonschema==3.2.0
 pyrsistent==0.14.0
 mmh3==2.5.1
 requests[security]>=2.9.1
-cryptography==3.1.1
+cryptography>=1.3.4,<=3.1.1
