lib/httpx/io/ssl.rb in httpx-0.15.4 vs lib/httpx/io/ssl.rb in httpx-0.16.0

@@ -5,12 +5,12 @@
 module HTTPX
   TLSError = OpenSSL::SSL::SSLError
 
   class SSL < TCP
     TLS_OPTIONS = if OpenSSL::SSL::SSLContext.instance_methods.include?(:alpn_protocols)
-      { alpn_protocols: %w[h2 http/1.1] }
+      { alpn_protocols: %w[h2 http/1.1].freeze }.freeze
     else
-      {}
+      {}.freeze
     end
 
     def initialize(_, _, options)
       super
       @ctx = OpenSSL::SSL::SSLContext.new