diff --git a/setup.py b/setup.py
index b69b22b4..29c165b2 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
     python_requires=">= 3.7",
     packages=find_namespace_packages(where="src", exclude=("test",)),
     package_dir={"": "src"},
-    install_requires=["pydantic==1.8.2"],
+    install_requires=["pydantic >=1.8.2, <2.0.0"],
     extras_require={
         "test": [
             "black",