diff --git a/pkgs/development/python-modules/cryptography/default.nix b/pkgs/development/python-modules/cryptography/default.nix
index d122c42e846..426f6af7aa6 100644
--- a/pkgs/development/python-modules/cryptography/default.nix
+++ b/pkgs/development/python-modules/cryptography/default.nix
@@ -22,11 +22,11 @@
 
 buildPythonPackage rec {
   pname = "cryptography";
-  version = "3.1"; # Also update the hash in vectors.nix
+  version = "3.1.1"; # Also update the hash in vectors.nix
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "021yccbqr446zh1c9l8yj79h9bgbd1cwv0ppj168w9y67i3rlh16";
+    sha256 = "0z81q4d1nangw3r0v5f41mfl4d9r04qnbayl5ll5v5jpcfhwd7wx";
   };
 
   outputs = [ "out" "dev" ];
diff --git a/pkgs/development/python-modules/cryptography/vectors.nix b/pkgs/development/python-modules/cryptography/vectors.nix
index 99f3b6f8974..c7b244ff041 100644
--- a/pkgs/development/python-modules/cryptography/vectors.nix
+++ b/pkgs/development/python-modules/cryptography/vectors.nix
@@ -7,7 +7,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "10hixzqf2ppw8j61f6p04rgnq8ra6pjml68330s5af8df8xbqq16";
+    sha256 = "1xp2j79c1y8qj4b97ygx451gzp8l4cp830hnvg3zw8j134bcaaam";
   };
 
   # No tests included