diff --git a/pkgs/development/python-modules/pymc/default.nix b/pkgs/development/python-modules/pymc/default.nix
index 8f2ea6ee717a..d6a478165ea5 100644
--- a/pkgs/development/python-modules/pymc/default.nix
+++ b/pkgs/development/python-modules/pymc/default.nix
@@ -22,14 +22,14 @@
 
 buildPythonPackage rec {
   pname = "pymc";
-  version = "5.22.0";
+  version = "5.23.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "pymc-devs";
     repo = "pymc";
     tag = "v${version}";
-    hash = "sha256-NQYvtt/cjssJ7Lv3RyDeBMQByKMmt1p0X9F+LqhtTV4=";
+    hash = "sha256-Hlj5kOSMz8uoqeBkLiq9kT6CZrb2XJW9mas45G2EZB4=";
   };
 
   build-system = [