diff --git a/CHANGES/1322.bugfix b/CHANGES/1322.bugfix
new file mode 100644
index 00000000..a64a80c3
--- /dev/null
+++ b/CHANGES/1322.bugfix
@@ -0,0 +1 @@
+Fixed `pydantic` version <2.4, since 2.4 has breaking changes.
diff --git a/pyproject.toml b/pyproject.toml
index 2f17fd81..1908c8d8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ classifiers = [
 dependencies = [
     "magic-filter~=1.0.11",
     "aiohttp~=3.8.5",
-    "pydantic>=2.1.1,<3",
+    "pydantic>=2.1.1,<2.4",
     "aiofiles~=23.1.0",
     "certifi>=2023.7.22",
     "typing-extensions~=4.7.1",