diff --git a/HISTORY.txt b/HISTORY.txt
index ab0403f1..db2ec49c 100644
--- a/HISTORY.txt
+++ b/HISTORY.txt
@@ -1,3 +1,5 @@
+5.1.3:
+ - Updated delegator.py to 0.0.13
 5.1.2:
  - Add missing cacerts.pem file to MANIFEST.in
  - Improve error message when running `pipenv shell` multiple times.