diff --git a/pkgs/development/python-modules/primer3-py/default.nix b/pkgs/development/python-modules/primer3-py/default.nix
index 3a8228698d47..55e04244be4e 100644
--- a/pkgs/development/python-modules/primer3-py/default.nix
+++ b/pkgs/development/python-modules/primer3-py/default.nix
@@ -13,14 +13,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "primer3-py";
-  version = "2.3.0";
+  version = "2.3.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "libnano";
     repo = "primer3-py";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-HL/kFpz5xvFDKgef2+AI/qjs2jakl00qfPSABYMGyrI=";
+    hash = "sha256-FOHm7cwTHSR5rN+vavuMLCJREEGXrLqAMhKmHiCZuLM=";
   };
 
   postPatch = ''