diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd171ad..3880cb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
-- Rust edition transition [#303]
+- Build failure due to `imap` version [#303]
 - No tilde expansion in `maildir-dir` [#305]
 
 ## [0.5.6] - 2022-02-22
diff --git a/Cargo.toml b/Cargo.toml
index 9bb05f0..ba79a24 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ clap = { version = "2.33.3", default-features = false, features = ["suggestions"
 env_logger = "0.8.3"
 erased-serde = "0.3.18"
 html-escape = "0.2.9"
-imap = "3.0.0-alpha.4"
+imap = "=3.0.0-alpha.4"
 imap-proto = "0.14.3"
 lettre = { version = "0.10.0-rc.1", features = ["serde"] }
 log = "0.4.14"