diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a74ca3..aa40aec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+### Changed
+
+- Bump rust-toolchain to 1.84.1 ([#11]).
+
+[#11]: https://github.com/stackabletech/config-utils/pull/11
+
 ## [0.2.0] - 2024-06-25
 
 ### Added
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 5198580..fcb78ec 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.78.0"
+channel = "1.84.1"