diff --git a/pip b/pip
index 81b749c..831f202 160000
--- a/pip
+++ b/pip
@@ -1 +1 @@
-Subproject commit 81b749caa2ad38a17987c426568260a6a5f2c152
+Subproject commit 831f2025368b200076d68d6611b790340ad31a98