diff --git a/setup.py b/setup.py
index c8d5218eb..441ebb5ad 100644
--- a/setup.py
+++ b/setup.py
@@ -60,7 +60,7 @@ def readme():
         'scikit-image>=0.19, <0.25',
         "scikit-learn>=0.20.2, <2.0.0",
         "transformers>=4.0.0, <5.0.0",
-        "dill>=0.3.0, <0.4.0",
+        "dill>=0.3.0, <0.5.0",
         "tqdm>=4.28.1, <5.0.0",
         "requests>=2.21.0, <3.0.0",
         "pydantic>=1.8.0, <3.0.0",