CHANGES.markdown in timezone-1.3.8 vs CHANGES.markdown in timezone-1.3.9

@@ -1,6 +1,10 @@
 # master (unreleased)
 
+# 1.3.9
+
+* Updated with `tzdata-2020c` ([@panthomakos][])
+
 # 1.3.8
 
 * Updated with `tzdata-2020b` ([@panthomakos][])
 
 # 1.3.7