diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4c2ad0..6b37039 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,10 @@
 
 ## Unreleased
 
-* Drop the `c_variadic` feature, as it has been stabilized on nightly.
+* Drop the `c_variadic` feature, as it has been stabilized in 1.99.
   <https://github.com/lights0123/printf-compat/pull/63>
+* Set MSRV to 1.99.
+  <https://github.com/lights0123/printf-compat/pull/66>
 
 ## 0.4.0 (April 26, 2026)