diff --git a/pkgs/development/python-modules/pyblake2/default.nix b/pkgs/development/python-modules/pyblake2/default.nix
index 4e166dcb1837..c2f4e7db43fc 100644
--- a/pkgs/development/python-modules/pyblake2/default.nix
+++ b/pkgs/development/python-modules/pyblake2/default.nix
@@ -5,12 +5,12 @@
 
 buildPythonPackage rec {
   pname = "pyblake2";
-  version = "0.9.3";
+  version = "1.1.0";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "626448e1fe1cc01d2197118954bec9f158378577e12686d5b01979f7f0fa2212";
+    sha256 = "3a850036bf42053c74bfc52c063323ca78e40ba1f326b01777da5750a143631a";
   };
 
   # requires setting up sphinx doctest