diff --git a/CHANGELOG.md b/CHANGELOG.md
index 36b17bf2..d8274dd3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Default gateway not yet enforced for providers (e.g. TunnelBear). [passepartout-core-apple#4](https://github.com/passepartoutvpn/passepartout-core-apple/pull/4)
 - Active profile lost after renaming. [#128](https://github.com/passepartoutvpn/passepartout-ios/issues/128)
 - Handle server shutdown/restart (remote `--explicit-exit-notify`). [tunnelkit#131](https://github.com/passepartoutvpn/tunnelkit/issues/131)
+- Handle explicit IPv4/IPv6 protocols (`4` or `6` suffix in `--proto`). [tunnelkit#153](https://github.com/passepartoutvpn/tunnelkit/issues/153)
 
 ## 1.10.1 (2019-12-24)
 
diff --git a/Podfile b/Podfile
index b3d5bdc2..75ed1719 100644
--- a/Podfile
+++ b/Podfile
@@ -9,7 +9,7 @@ $tunnelkit_specs = ['Protocols/OpenVPN', 'Extra/LZO']
 
 def shared_pods
     #pod_version $tunnelkit_name, $tunnelkit_specs, '~> 2.2.1'
-    pod_git $tunnelkit_name, $tunnelkit_specs, '8825a4e'
+    pod_git $tunnelkit_name, $tunnelkit_specs, '750fb5c'
     #pod_path $tunnelkit_name, $tunnelkit_specs, '..'
     pod 'SSZipArchive'
 
diff --git a/Podfile.lock b/Podfile.lock
index 53a2c2a1..edcf44c7 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -49,8 +49,8 @@ DEPENDENCIES:
   - Kvitto
   - MBProgressHUD
   - SSZipArchive
-  - TunnelKit/Extra/LZO (from `https://github.com/passepartoutvpn/tunnelkit`, commit `8825a4e`)
-  - TunnelKit/Protocols/OpenVPN (from `https://github.com/passepartoutvpn/tunnelkit`, commit `8825a4e`)
+  - TunnelKit/Extra/LZO (from `https://github.com/passepartoutvpn/tunnelkit`, commit `750fb5c`)
+  - TunnelKit/Protocols/OpenVPN (from `https://github.com/passepartoutvpn/tunnelkit`, commit `750fb5c`)
 
 SPEC REPOS:
   https://github.com/cocoapods/specs.git:
@@ -66,7 +66,7 @@ EXTERNAL SOURCES:
     :commit: 3a191e8
     :git: https://github.com/keeshux/convenience
   TunnelKit:
-    :commit: 8825a4e
+    :commit: 750fb5c
     :git: https://github.com/passepartoutvpn/tunnelkit
 
 CHECKOUT OPTIONS:
@@ -74,7 +74,7 @@ CHECKOUT OPTIONS:
     :commit: 3a191e8
     :git: https://github.com/keeshux/convenience
   TunnelKit:
-    :commit: 8825a4e
+    :commit: 750fb5c
     :git: https://github.com/passepartoutvpn/tunnelkit
 
 SPEC CHECKSUMS:
@@ -87,6 +87,6 @@ SPEC CHECKSUMS:
   SwiftyBeaver: f9a9aba96a6a6166e21682377804d728b0d20b95
   TunnelKit: 1733ed87934deb57edc7aa5f4b25185bf302a7d4
 
-PODFILE CHECKSUM: bfe97510ab2b83cac0e2e1e353ecc2545f24d5ae
+PODFILE CHECKSUM: bcbe0b9840cfc545bf0b185f271833162c3d7555
 
 COCOAPODS: 1.8.4