diff --git a/pip b/pip
index 8f54892..c91b54d 160000
--- a/pip
+++ b/pip
@@ -1 +1 @@
-Subproject commit 8f548920accda750df8c638f7ae2626b7fa17f8a
+Subproject commit c91b54d3257b2863915a657b5c5e1a361c1f97fd