diff --git a/pkgs/development/python-modules/pycrdt/Cargo.lock b/pkgs/development/python-modules/pycrdt/Cargo.lock
index 4abf8ce1e64d..d3ae6abe0189 100644
--- a/pkgs/development/python-modules/pycrdt/Cargo.lock
+++ b/pkgs/development/python-modules/pycrdt/Cargo.lock
@@ -245,9 +245,10 @@ dependencies = [
 
 [[package]]
 name = "pycrdt"
-version = "0.12.22"
+version = "0.12.23"
 dependencies = [
  "pyo3",
+ "serde_json",
  "yrs",
 ]
 
diff --git a/pkgs/development/python-modules/pycrdt/default.nix b/pkgs/development/python-modules/pycrdt/default.nix
index 9002c6b1f465..521f1d65a461 100644
--- a/pkgs/development/python-modules/pycrdt/default.nix
+++ b/pkgs/development/python-modules/pycrdt/default.nix
@@ -19,14 +19,14 @@
 
 buildPythonPackage rec {
   pname = "pycrdt";
-  version = "0.12.22";
+  version = "0.12.23";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "y-crdt";
     repo = "pycrdt";
     tag = version;
-    hash = "sha256-1RTH6u+B+u4+ILvQufHgKCRW1Pj3Tyz5PFOBP/bDWD4=";
+    hash = "sha256-xMGu7L6aisTLzLx8pw/k4rXvjTiZsPANXsU1T1FOXKM=";
   };
 
   postPatch = ''