diff --git a/examples/ssl/127.0.0.1.bundle.crt b/examples/ssl/127.0.0.1.chain.crt
similarity index 100%
rename from examples/ssl/127.0.0.1.bundle.crt
rename to examples/ssl/127.0.0.1.chain.crt
diff --git a/examples/worker_ssl.rb b/examples/worker_ssl.rb
index 7c8c780..d090f7c 100644
--- a/examples/worker_ssl.rb
+++ b/examples/worker_ssl.rb
@@ -8,6 +8,7 @@
 c = Grenache::Http.new(grape_address: "http://127.0.0.1:40002/",
                        key:  File.expand_path('.') + "/ssl/127.0.0.1.key",
                        cert_pem: File.expand_path('.') + "/ssl/127.0.0.1.chain.crt",
+                       cert_ecdh_curve: 'secp384r1',
                        ca: File.expand_path('.') + "/ssl/ca.crt",
                        service_host: "localhost")
 
diff --git a/lib/grenache/http.rb b/lib/grenache/http.rb
index b97d06e..ec52547 100644
--- a/lib/grenache/http.rb
+++ b/lib/grenache/http.rb
@@ -36,8 +36,10 @@ def start_http_service(port, &block)
           server.ssl_options = {
             private_key_file: config.key,
             cert_chain_file: config.cert_pem,
+            ecdh_curve: config.cert_ecdh_curve,
             verify_peer: true
           }
+
           server.backend.ca_cert = File.read config.ca
         end
         server.start
diff --git a/lib/grenache/http/version.rb b/lib/grenache/http/version.rb
index 5d196dd..f71c227 100644
--- a/lib/grenache/http/version.rb
+++ b/lib/grenache/http/version.rb
@@ -1,5 +1,5 @@
 module Grenache
   module HTTP
-    VERSION = "0.2.12"
+    VERSION = "0.2.13"
   end
 end