diff --git a/.swift-version b/.swift-version
deleted file mode 100644
index bf77d54..0000000
--- a/.swift-version
+++ /dev/null
@@ -1 +0,0 @@
-4.2
diff --git a/TunnelKit.podspec b/TunnelKit.podspec
index d56eca7..903b031 100644
--- a/TunnelKit.podspec
+++ b/TunnelKit.podspec
@@ -7,6 +7,7 @@ Pod::Spec.new do |s|
     s.license           = { :type => "GPLv3", :file => "LICENSE" }
     s.author            = { "Davide De Rosa" => "keeshux@gmail.com" }
     s.source            = { :git => "https://github.com/keeshux/tunnelkit.git", :tag => "v#{s.version}" }
+    s.swift_version     = "4.2"
 
     s.ios.deployment_target = "11.0"
     s.osx.deployment_target = "10.11"