diff --git a/README.md b/README.md
index 8a89374b..d9ba6cd9 100644
--- a/README.md
+++ b/README.md
@@ -104,7 +104,6 @@ Requirements
 
 * ``python`` (or ``pypy``), **==2.7** or **>=3.7**
 * ``setuptools``, **>=42**
-* ``wheel``, **>=0.1**
 
 Optional requirements:
 
diff --git a/dill/__init__.py b/dill/__init__.py
index 5b10c2be..e5546fc4 100644
--- a/dill/__init__.py
+++ b/dill/__init__.py
@@ -7,7 +7,7 @@
 #  - https://github.com/uqfoundation/dill/blob/master/LICENSE
 
 # author, version, license, and long description
-__version__ = '0.3.6.dev0'
+__version__ = '0.3.5.1.dev0'
 __author__ = 'Mike McKerns'
 
 __doc__ = """
@@ -118,7 +118,6 @@
 
     - ``python`` (or ``pypy``), **==2.7** or **>=3.7**
     - ``setuptools``, **>=42**
-    - ``wheel``, **>=0.1**
 
 Optional requirements: