diff --git a/SWCompression.podspec b/SWCompression.podspec
index 582f64cd..04fa93a9 100644
--- a/SWCompression.podspec
+++ b/SWCompression.podspec
@@ -20,7 +20,7 @@ Pod::Spec.new do |s|
   s.tvos.deployment_target = "9.0"
   s.watchos.deployment_target = "2.0"
 
-  s.swift_versions = ["4", "5"]
+  s.swift_versions = ["5"]
 
   s.dependency "BitByteData", "~> 1.4.3"