diff --git a/Lib/ensurepip/__init__.py b/Lib/ensurepip/__init__.py
index 64786c0ff16..d926cbe6988 100644
--- a/Lib/ensurepip/__init__.py
+++ b/Lib/ensurepip/__init__.py
@@ -12,7 +12,7 @@
 
 _SETUPTOOLS_VERSION = "2.0.1"
 
-_PIP_VERSION = "1.5rc3"
+_PIP_VERSION = "1.5rc4"
 
 # pip currently requires ssl support, so we try to provide a nicer
 # error message when that is missing (http://bugs.python.org/issue19744)
diff --git a/Lib/ensurepip/_bundled/pip-1.5rc3-py2.py3-none-any.whl b/Lib/ensurepip/_bundled/pip-1.5rc4-py2.py3-none-any.whl
similarity index 78%
rename from Lib/ensurepip/_bundled/pip-1.5rc3-py2.py3-none-any.whl
rename to Lib/ensurepip/_bundled/pip-1.5rc4-py2.py3-none-any.whl
index 58443638a6a..2a16332814c 100644
Binary files a/Lib/ensurepip/_bundled/pip-1.5rc3-py2.py3-none-any.whl and b/Lib/ensurepip/_bundled/pip-1.5rc4-py2.py3-none-any.whl differ