diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef8f8d3..ed70598 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 Entries are listed in reverse chronological order.
 
+# 2.x Series
+
+## 2.0.0-pre.0
+
+* Update `rand_core` dependency to `0.6`.
+
 # 1.x Series
 
 ## 1.2