lib/active_merchant/billing/gateways/clearhaus.rb in activemerchant-1.107.4 vs lib/active_merchant/billing/gateways/clearhaus.rb in activemerchant-1.108.0

@@ -204,10 +204,10 @@
         match.captures.first
       end
 
       def generate_signature(body)
         key = OpenSSL::PKey::RSA.new(@options[:private_key])
-        hex = key.sign(OpenSSL::Digest.new('sha256'), body).unpack('H*').first
+        hex = key.sign(OpenSSL::Digest.new('sha256'), body).unpack1('H*')
 
         "#{@options[:signing_key]} RS256-hex #{hex}"
       end
 
       def error_code_from(response)