lib/httpx/altsvc.rb in httpx-1.1.2 vs lib/httpx/altsvc.rb in httpx-1.1.3

@@ -2,10 +2,10 @@
 
 require "strscan"
 
 module HTTPX
   module AltSvc
-    @altsvc_mutex = Mutex.new
+    @altsvc_mutex = Thread::Mutex.new
     @altsvcs = Hash.new { |h, k| h[k] = [] }
 
     module_function
 
     def cached_altsvc(origin)