diff --git a/pkgs/development/python-modules/smart-meter-texas/default.nix b/pkgs/development/python-modules/smart-meter-texas/default.nix
index 762e9534148a..a9364ad0d1f2 100644
--- a/pkgs/development/python-modules/smart-meter-texas/default.nix
+++ b/pkgs/development/python-modules/smart-meter-texas/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "smart-meter-texas";
-  version = "0.4.6";
+  version = "0.4.7";
 
   disabled = pythonOlder "3.6";
 
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     owner = "grahamwetzler";
     repo = "smart-meter-texas";
     rev = "v${version}";
-    sha256 = "sha256-BZb02eIFYCrTDDqeo6FlGpm8LCN/GxcdKGTR5L2/DpE=";
+    sha256 = "1hfvv3kpkc7i9mn58bjgvwjj0mi2syr8fv4r8bwbhq5sailma27j";
   };
 
   postPatch = ''