diff --git a/pyproject.toml b/pyproject.toml
index 5a3b816..a7a04ee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ keywords = [
 ]
 dependencies = [
     "comm >=0.1.4,<1",
-    "pycrdt >=0.9.0,<0.13.0",
+    "pycrdt >=0.9.0,<0.14.0",
     "reacttrs >=0.2.1,<0.3.0",
 ]