diff --git a/pip b/pip
index 5f7c58c..51c7355 160000
--- a/pip
+++ b/pip
@@ -1 +1 @@
-Subproject commit 5f7c58c28eacdc91cbdd470e6e58710506aca8cb
+Subproject commit 51c7355af4708b83760c27a0bf5c8849da74d1fe