diff --git a/docs/changelog.rst b/docs/changelog.rst
index 529ab927..91f129b3 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,5 +1,9 @@
 Changelog
 ---------
+2.2.17
+^^^^^^
+- Update nltk from 3.8.0 to 3.9.1.
+
 2.2.16
 ^^^^^^
 - Update copyright details.