diff --git a/requirements.txt b/requirements.txt
index d696cd44b..3ff8bea3d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ pathy
 numpy>=1.15.0
 requests>=2.13.0,<3.0.0
 tqdm>=4.38.0,<5.0.0
-pydantic>=1.3.0,<2.0.0
+pydantic>=1.5.0,<2.0.0
 pytokenizations
 # Official Python utilities
 setuptools
diff --git a/setup.cfg b/setup.cfg
index b55c0d376..92732dc33 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -51,7 +51,7 @@ install_requires =
     tqdm>=4.38.0,<5.0.0
     numpy>=1.15.0
     requests>=2.13.0,<3.0.0
-    pydantic>=1.3.0,<2.0.0
+    pydantic>=1.5.0,<2.0.0
     pytokenizations
     # Official Python utilities
     setuptools