diff --git a/pkgs/development/python-modules/ecdsa/default.nix b/pkgs/development/python-modules/ecdsa/default.nix
index aa69b7e2fcd..7c991c528cd 100644
--- a/pkgs/development/python-modules/ecdsa/default.nix
+++ b/pkgs/development/python-modules/ecdsa/default.nix
@@ -7,11 +7,11 @@
 
 buildPythonPackage rec {
   pname = "ecdsa";
-  version = "0.14.1";
+  version = "0.15";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "64c613005f13efec6541bb0a33290d0d03c27abab5f15fbab20fb0ee162bdd8e";
+    sha256 = "8f12ac317f8a1318efa75757ef0a651abe12e51fc1af8838fb91079445227277";
   };
 
   propagatedBuildInputs = [ six ];