diff --git a/setup.py b/setup.py
index 6ce7e3cd9a3e1fd43d4e75115ffad9724b5cd5bc..9529a0c4f5f2138cf913d94d8665a0810552cdd9 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ REQUIREMENTS = [
     'absl-py==0.9.0',
     'allennlp==1.2.0',
     'conllu==2.3.2',
-    'dataclasses==0.5',
+    'dataclasses;python_version<"3.7"',
     'dataclasses-json==0.5.2',
     'joblib==0.14.1',
     'jsonnet==0.15.0',