diff --git a/HISTORY.txt b/HISTORY.txt
index 128f2eeb..22ade665 100644
--- a/HISTORY.txt
+++ b/HISTORY.txt
@@ -1,5 +1,6 @@
 8.1.7:
  - Fix dependencies with markers attached. That wasn't easy.
+ - Vendor (patch) pip-tools.
  - Honor PIP_SRC if it is provided.
  - Update Python 2.x default to 2.7.14.
  - Deploy mode aborts if Python version doesn't match.