diff --git a/CHANGES.md b/CHANGES.md
index d0ff571..79d2f5f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 Note - All hash comments refer to the issue number. Eg. #169 refers to https://github.com/markn86/moodle-mod_customcert/issues/169.
 
+## [3.3.17] - 2019-02-04
+
+### Fixed
+
+- Fixed invalid syntax for PHP 5.6 as it is still supported in 3.3.
+
 ## [3.3.16] - 2019-02-04
 
 ### Changed