diff --git a/Deploy/WultraPassphraseMeter.podspec b/Deploy/WultraPassphraseMeter.podspec
index 3914a34..567651e 100644
--- a/Deploy/WultraPassphraseMeter.podspec
+++ b/Deploy/WultraPassphraseMeter.podspec
@@ -8,7 +8,7 @@ Pod::Spec.new do |s|
   s.license          = { :type => 'Apache License, Version 2.0', :file => 'LICENSE' }
   s.author           = { 'Wultra s.r.o.' => 'support@wultra.com' }
   s.source           = { :git => 'https://github.com/wultra/passphrase-meter.git', :tag => s.version.to_s }
-  s.swift_version    = '5.0'
+  s.swift_versions   = ['5.0']
 
   s.ios.deployment_target = '8.0'
   s.osx.deployment_target = '10.10'
diff --git a/WultraPassphraseMeter.podspec b/WultraPassphraseMeter.podspec
index b3dce31..c404b50 100644
--- a/WultraPassphraseMeter.podspec
+++ b/WultraPassphraseMeter.podspec
@@ -8,7 +8,7 @@ Pod::Spec.new do |s|
   s.license          = { :type => 'Apache License, Version 2.0', :file => 'LICENSE' }
   s.author           = { 'Wultra s.r.o.' => 'support@wultra.com' }
   s.source           = { :git => 'https://github.com/wultra/passphrase-meter.git', :tag => s.version.to_s }
-  s.swift_version    = '5.0'
+  s.swift_versions   = ['5.0']
 
   s.ios.deployment_target = '8.0'
   s.osx.deployment_target = '10.10'