diff --git a/GradientLoadingBar.podspec b/GradientLoadingBar.podspec
index 506c3e9..3325ad9 100644
--- a/GradientLoadingBar.podspec
+++ b/GradientLoadingBar.podspec
@@ -29,6 +29,7 @@ Inspired by https://codepen.io/marcobiedermann/pen/LExXWW
   s.source           = { :git => 'https://github.com/fxm90/GradientLoadingBar.git', :tag => s.version.to_s }
   s.social_media_url = 'https://twitter.com/_fxm90'
 
+  s.swift_version         = '5.0'
   s.ios.deployment_target = '9.0'
 
   s.source_files = 'GradientLoadingBar/Classes/**/*'