diff --git a/pkgs/development/python-modules/pyhomematic/default.nix b/pkgs/development/python-modules/pyhomematic/default.nix
index 7d8fa826b0e7..5349ea994a44 100644
--- a/pkgs/development/python-modules/pyhomematic/default.nix
+++ b/pkgs/development/python-modules/pyhomematic/default.nix
@@ -2,13 +2,13 @@
 
 buildPythonPackage rec {
   pname = "pyhomematic";
-  version = "0.1.65";
+  version = "0.1.66";
 
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0a562dqxs2j9q0xyywrh43dlbpdqr3mhvrrk8abdpmgj6gl33zac";
+    sha256 = "f046db8406ee8a1aea6f6b05de8a133d3459b990c065c3f66446050e9aad5d79";
   };
 
   # PyPI tarball does not include tests/ directory