diff --git a/pkgs/development/python-modules/dyn/default.nix b/pkgs/development/python-modules/dyn/default.nix
index 881f51b69aa..efb9cab8048 100644
--- a/pkgs/development/python-modules/dyn/default.nix
+++ b/pkgs/development/python-modules/dyn/default.nix
@@ -3,12 +3,12 @@
 
 buildPythonPackage rec {
   pname = "dyn";
-  version = "1.8.0";
+  version = "1.8.1";
   name  = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "4ab3cd9a1478674cf2d2aa6740fb0ddf77daaa9ab3e35e5d2bc92f60301f8523";
+    sha256 = "e112149d48b4500c18b3cfb6e0e6e780bb5aa0e56ff87cac412280200b9ec8bf";
   };
 
   buildInputs = [ glibcLocales ];