diff --git a/Gemfile b/Gemfile
index 7e7be6e..bdfbd38 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
 source 'https://rubygems.org'
 
-gem 'cocoapods', '1.2.0'
+gem 'cocoapods', '1.5.0'
 gem 'fastlane'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7ec9bdb..de966a8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,31 +12,31 @@ GEM
     atomos (0.1.2)
     babosa (1.0.2)
     claide (1.0.2)
-    cocoapods (1.2.0)
+    cocoapods (1.5.0)
       activesupport (>= 4.0.2, < 5)
-      claide (>= 1.0.1, < 2.0)
-      cocoapods-core (= 1.2.0)
-      cocoapods-deintegrate (>= 1.0.1, < 2.0)
-      cocoapods-downloader (>= 1.1.3, < 2.0)
+      claide (>= 1.0.2, < 2.0)
+      cocoapods-core (= 1.5.0)
+      cocoapods-deintegrate (>= 1.0.2, < 2.0)
+      cocoapods-downloader (>= 1.2.0, < 2.0)
       cocoapods-plugins (>= 1.0.0, < 2.0)
       cocoapods-search (>= 1.0.0, < 2.0)
       cocoapods-stats (>= 1.0.0, < 2.0)
-      cocoapods-trunk (>= 1.1.2, < 2.0)
+      cocoapods-trunk (>= 1.3.0, < 2.0)
       cocoapods-try (>= 1.1.0, < 2.0)
-      colored (~> 1.2)
+      colored2 (~> 3.1)
       escape (~> 0.0.4)
       fourflusher (~> 2.0.1)
       gh_inspector (~> 1.0)
-      molinillo (~> 0.5.5)
+      molinillo (~> 0.6.5)
       nap (~> 1.0)
-      ruby-macho (~> 0.2.5)
-      xcodeproj (>= 1.4.1, < 2.0)
-    cocoapods-core (1.2.0)
-      activesupport (>= 4.0.2, < 5)
+      ruby-macho (~> 1.1)
+      xcodeproj (>= 1.5.7, < 2.0)
+    cocoapods-core (1.5.0)
+      activesupport (>= 4.0.2, < 6)
       fuzzy_match (~> 2.0.4)
       nap (~> 1.0)
-    cocoapods-deintegrate (1.0.1)
-    cocoapods-downloader (1.1.3)
+    cocoapods-deintegrate (1.0.2)
+    cocoapods-downloader (1.2.0)
     cocoapods-plugins (1.0.0)
       nap
     cocoapods-search (1.0.0)
@@ -49,6 +49,7 @@ GEM
     colored2 (3.1.2)
     commander-fastlane (4.4.6)
       highline (~> 1.7.2)
+    concurrent-ruby (1.0.5)
     declarative (0.0.10)
     declarative-option (0.1.0)
     domain_name (0.5.20180417)
@@ -123,7 +124,8 @@ GEM
     http-cookie (1.0.3)
       domain_name (~> 0.5)
     httpclient (2.8.3)
-    i18n (0.8.6)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (2.1.0)
     jwt (2.1.0)
     little-plugger (1.1.4)
@@ -135,8 +137,8 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_magick (4.5.1)
-    minitest (5.10.3)
-    molinillo (0.5.7)
+    minitest (5.11.3)
+    molinillo (0.6.5)
     multi_json (1.13.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
@@ -153,7 +155,7 @@ GEM
       uber (< 0.2.0)
     retriable (3.1.1)
     rouge (2.0.7)
-    ruby-macho (0.2.6)
+    ruby-macho (1.1.0)
     rubyzip (1.2.1)
     security (0.1.3)
     signet (0.8.1)
@@ -173,7 +175,7 @@ GEM
     tty-screen (0.6.4)
     tty-spinner (0.8.0)
       tty-cursor (>= 0.5.0)
-    tzinfo (1.2.3)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uber (0.1.0)
     unf (0.1.4)
@@ -196,7 +198,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  cocoapods (= 1.2.0)
+  cocoapods (= 1.5.0)
   fastlane
 
 BUNDLED WITH
diff --git a/Podfile.lock b/Podfile.lock
index cd62c6c..16bf18d 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -4,9 +4,13 @@ PODS:
 DEPENDENCIES:
   - SwiftLint (= 0.17.0)
 
+SPEC REPOS:
+  https://github.com/CocoaPods/Specs.git:
+    - SwiftLint
+
 SPEC CHECKSUMS:
   SwiftLint: 9fb1dd71d5952d130f8c2fb60ae2e1475cf5d575
 
 PODFILE CHECKSUM: 6de42c862bb13ec2ccd171dba3d8387c1810a80d
 
-COCOAPODS: 1.2.0
+COCOAPODS: 1.5.0
diff --git a/SwiftyRSA.podspec b/SwiftyRSA.podspec
index 9393d05..819a71c 100644
--- a/SwiftyRSA.podspec
+++ b/SwiftyRSA.podspec
@@ -1,23 +1,24 @@
 Pod::Spec.new do |s|
 
-  s.name         = "SwiftyRSA"
-  s.version      = "1.4.0"
-  s.summary      = "Public key RSA encryption in Swift."
+  s.name = "SwiftyRSA"
+  s.version = "1.4.0"
+  s.summary = "Public key RSA encryption in Swift."
 
-  s.description  = <<-DESC
-                   Encrypt with a RSA public key, decrypt with a RSA private key.
-                   DESC
+  s.description = <<-DESC
+    Encrypt with a RSA public key, decrypt with a RSA private key.
+  DESC
 
-  s.homepage     = "https://github.com/TakeScoop/SwiftyRSA"
-  s.license      = "MIT"
-  s.author       = { "Scoop" => "ops@takescoop.com" }
+  s.homepage = "https://github.com/TakeScoop/SwiftyRSA"
+  s.license = "MIT"
+  s.author = { "Scoop" => "ops@takescoop.com" }
 
-  s.source       = { :git => "https://github.com/TakeScoop/SwiftyRSA.git", :tag => s.version }
+  s.source = { :git => "https://github.com/TakeScoop/SwiftyRSA.git", :tag => s.version }
   s.source_files = "SwiftyRSA/*.{swift,m,h}"
   s.exclude_files = "SwiftyRSA/SwiftyRSA+ObjC.swift"
-  s.framework    = "Security"
+  s.framework = "Security"
   s.requires_arc = true
   
+  s.swift_version = "4.1"
   s.ios.deployment_target = "8.3"
   s.tvos.deployment_target = "9.2"
   s.watchos.deployment_target = "2.2"