diff --git a/vscode-sbt-scala/client/syntaxes/Scala.tmLanguage b/vscode-sbt-scala/client/syntaxes/Scala.tmLanguage
index 2dc4860cd..aee49eaf0 100644
--- a/vscode-sbt-scala/client/syntaxes/Scala.tmLanguage
+++ b/vscode-sbt-scala/client/syntaxes/Scala.tmLanguage
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "https://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
 	<key>fileTypes</key>