diff --git a/setup.py b/setup.py
index 1477660c6..3001d6c2f 100644
--- a/setup.py
+++ b/setup.py
@@ -55,7 +55,7 @@ def readme():
         "Pillow>=5.4.1, <10.0.0",
         "opencv-python>=3.2.0, <5.0.0",
         "scipy>=1.3.0, <2.0.0",
-        'scikit-image>=0.14.2, !=0.17.1, <0.21',  # https://github.com/SeldonIO/alibi/issues/215
+        'scikit-image>=0.14.2, !=0.17.1, <0.22',  # https://github.com/SeldonIO/alibi/issues/215
         "scikit-learn>=0.20.2, <2.0.0",
         "transformers>=4.0.0, <5.0.0",
         "dill>=0.3.0, <0.4.0",