diff --git a/Passepartout/App/iOS/CHANGELOG.md b/Passepartout/App/iOS/CHANGELOG.md
index 5c8d7489..c61cb1fa 100644
--- a/Passepartout/App/iOS/CHANGELOG.md
+++ b/Passepartout/App/iOS/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+
+- Regression in TLS handshake on certain devices.
+
 ## 1.17.0 (2021-11-16)
 
 ### Changed
diff --git a/Passepartout/App/macOS/CHANGELOG.md b/Passepartout/App/macOS/CHANGELOG.md
index a6b92d0d..e46ee3f9 100644
--- a/Passepartout/App/macOS/CHANGELOG.md
+++ b/Passepartout/App/macOS/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+
+- Regression in TLS handshake on certain devices.
+
 ## 1.17.0 (2021-11-16)
 
 ### Changed
diff --git a/PassepartoutCore/Package.resolved b/PassepartoutCore/Package.resolved
index caf920a2..7f49d491 100644
--- a/PassepartoutCore/Package.resolved
+++ b/PassepartoutCore/Package.resolved
@@ -78,8 +78,8 @@
         "repositoryURL": "https://github.com/passepartoutvpn/tunnelkit",
         "state": {
           "branch": null,
-          "revision": "29ff5a3772e42d3a367653d32882e218fed0c733",
-          "version": "4.0.0"
+          "revision": "995009121a4ad02fb9d8a3f2980ea9dd1693e396",
+          "version": null
         }
       }
     ]
diff --git a/PassepartoutCore/Package.swift b/PassepartoutCore/Package.swift
index b5470015..6ae69153 100644
--- a/PassepartoutCore/Package.swift
+++ b/PassepartoutCore/Package.swift
@@ -21,7 +21,7 @@ let package = Package(
     dependencies: [
         // Dependencies declare other packages that this package depends on.
         // .package(url: /* package url */, from: "1.0.0"),
-        .package(name: "TunnelKit", url: "https://github.com/passepartoutvpn/tunnelkit", from: "4.0.0"),
+        .package(name: "TunnelKit", url: "https://github.com/passepartoutvpn/tunnelkit", .revision("995009121a4ad02fb9d8a3f2980ea9dd1693e396")),
         .package(name: "Convenience", url: "https://github.com/keeshux/convenience", .revision("347105ec0ce27cd4255acf9875fd60ad1f213801")),
         .package(url: "https://github.com/Cocoanetics/Kvitto", from: "1.0.0")
     ],