diff --git a/pkgs/development/python-modules/pyopenssl/default.nix b/pkgs/development/python-modules/pyopenssl/default.nix
index a6e8e94e094..7bc54cb0ffb 100644
--- a/pkgs/development/python-modules/pyopenssl/default.nix
+++ b/pkgs/development/python-modules/pyopenssl/default.nix
@@ -48,11 +48,11 @@ in
 
 buildPythonPackage rec {
   pname = "pyOpenSSL";
-  version = "18.0.0";
+  version = "19.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "6488f1423b00f73b7ad5167885312bb0ce410d3312eb212393795b53c8caa580";
+    sha256 = "aeca66338f6de19d1aa46ed634c3b9ae519a64b458f8468aec688e7e3c20f200";
   };
 
   outputs = [ "out" "dev" ];