diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed70598..eabe803 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ Entries are listed in reverse chronological order.
 
 # 2.x Series
 
+## 2.0.0-pre.1
+
+* Loosen restriction on zeroize dependency version from =1.3 to 1.
+* Update MSRV to 1.51.
+
 ## 2.0.0-pre.0
 
 * Update `rand_core` dependency to `0.6`.