diff --git a/History.markdown b/History.markdown
index 4e39f544..f3a36217 100644
--- a/History.markdown
+++ b/History.markdown
@@ -1,5 +1,9 @@
 ## HEAD
 
+### Development Fixes
+
+  * Add Ruby 3.0 to CI (#337)
+
 ## 0.15.1 / 2020-10-04
 
 ### Bug Fixes