diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index b5da12e..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,29 +0,0 @@
-language: elixir
-notifications:
-  email:
-    recipients:
-      - eduardo@gurgel.me
-cache:
-  directories:
-    - _build
-    - deps
-sudo: false
-script: mix test
-matrix:
-  include:
-    - elixir: '1.7'
-      otp_release: '19.3'
-    - elixir: '1.7'
-      otp_release: '20.3'
-    - elixir: '1.7'
-      otp_release: '21.0'
-    - elixir: '1.8'
-      otp_release: '20.3'
-    - elixir: '1.8'
-      otp_release: '21.0'
-    - elixir: '1.8'
-      otp_release: '22.0.1'
-    - elixir: '1.15.8'
-      otp_release: '25.3.2.12'
-    - elixir: '1.16.3'
-      otp_release: '26.2.5'
diff --git a/config/releases.exs b/config/releases.exs
index d05ffba..4bb5f83 100644
--- a/config/releases.exs
+++ b/config/releases.exs
@@ -14,4 +14,3 @@ config :httparrot,
   https_port: ssl_port,
   unix_socket: unix_socket,
   socket_path: System.get_env("SOCKET_PATH", "httparrot.sock")
-
diff --git a/lib/httparrot.ex b/lib/httparrot.ex
index bab8739..d815889 100644
--- a/lib/httparrot.ex
+++ b/lib/httparrot.ex
@@ -7,7 +7,7 @@ defmodule HTTParrot do
   end
 
   def init(_) do
-    Supervisor.start_link([], [strategy: :one_for_one])
+    Supervisor.start_link([], strategy: :one_for_one)
   end
 
   def start(_type, _args) do
@@ -71,9 +71,9 @@ defmodule HTTParrot do
           :https,
           [
             port: https_port,
-            cacertfile: priv_dir ++ '/ssl/server-ca.crt',
-            certfile: priv_dir ++ '/ssl/server.crt',
-            keyfile: priv_dir ++ '/ssl/server.key'
+            cacertfile: priv_dir ++ ~c"/ssl/server-ca.crt",
+            certfile: priv_dir ++ ~c"/ssl/server.crt",
+            keyfile: priv_dir ++ ~c"/ssl/server.key"
           ],
           %{env: %{dispatch: dispatch}}
         )
diff --git a/lib/httparrot/redirect_handler.ex b/lib/httparrot/redirect_handler.ex
index 463b55b..3e16a00 100644
--- a/lib/httparrot/redirect_handler.ex
+++ b/lib/httparrot/redirect_handler.ex
@@ -19,7 +19,11 @@ defmodule HTTParrot.RedirectHandler do
   def previously_existed(req, state), do: {true, req, state}
 
   def moved_permanently(req, n) do
-    host_url = IO.iodata_to_binary(:cowboy_req.uri(req, %{path: :undefined, qs: :undefined, fragment: :undefined}))
+    host_url =
+      IO.iodata_to_binary(
+        :cowboy_req.uri(req, %{path: :undefined, qs: :undefined, fragment: :undefined})
+      )
+
     url = if n > 1, do: "/redirect/#{n - 1}", else: "/get"
     {{true, host_url <> url}, req, nil}
   end
diff --git a/lib/httparrot/store_request_handler.ex b/lib/httparrot/store_request_handler.ex
index 316b28e..39f0d34 100644
--- a/lib/httparrot/store_request_handler.ex
+++ b/lib/httparrot/store_request_handler.ex
@@ -23,7 +23,7 @@ defmodule HTTParrot.StoreRequestHandler do
     {info, req} = GeneralRequestInfo.retrieve(req)
     key = :cowboy_req.binding(:key, req)
     HTTParrot.RequestStore.store(key, info)
-    {'{"saved":  "true"}', req, state}
+    {~c'{"saved":  "true"}', req, state}
   end
 
   def post_binary(req, _state) do
diff --git a/lib/httparrot/stream_bytes_handler.ex b/lib/httparrot/stream_bytes_handler.ex
index 05cdf27..5a0af6a 100644
--- a/lib/httparrot/stream_bytes_handler.ex
+++ b/lib/httparrot/stream_bytes_handler.ex
@@ -31,13 +31,15 @@ defmodule HTTParrot.StreamBytesHandler do
   end
 
   defp stream_response!(n, chunk_size, req) do
-    req = :cowboy_req.stream_reply(200, %{ "content-type" => "application/octet-stream" }, req)
+    req = :cowboy_req.stream_reply(200, %{"content-type" => "application/octet-stream"}, req)
+
     Stream.repeatedly(fn -> :rand.uniform(255) end)
     |> Stream.take(n)
     |> Enum.chunk_every(chunk_size, chunk_size, [])
     |> Enum.each(fn chunk ->
       :cowboy_req.stream_body(List.to_string(chunk), :nofin, req)
     end)
+
     :cowboy_req.stream_body("", :fin, req)
     req
   end
diff --git a/lib/httparrot/stream_handler.ex b/lib/httparrot/stream_handler.ex
index 753900f..8b490f1 100644
--- a/lib/httparrot/stream_handler.ex
+++ b/lib/httparrot/stream_handler.ex
@@ -25,11 +25,13 @@ defmodule HTTParrot.StreamHandler do
 
   def get_json(req, n) do
     {info, req} = GeneralRequestInfo.retrieve(req)
-    req = :cowboy_req.stream_reply(200, %{ "content-type" => "application/json" }, req)
+    req = :cowboy_req.stream_reply(200, %{"content-type" => "application/json"}, req)
+
     Enum.each(0..(n - 1), fn i ->
       body = JSX.encode!([id: i] ++ info)
       :cowboy_req.stream_body(body, :nofin, req)
     end)
+
     :cowboy_req.stream_body("", :fin, req)
     {:stop, req, nil}
   end
diff --git a/priv/ssl/server-ca.crt b/priv/ssl/server-ca.crt
index a35ac39..b78d61f 100644
--- a/priv/ssl/server-ca.crt
+++ b/priv/ssl/server-ca.crt
@@ -1,16 +1,27 @@
 -----BEGIN CERTIFICATE-----
-MIICeDCCAeGgAwIBAgIJAOvpU0y2e5J4MA0GCSqGSIb3DQEBBQUAMFUxCzAJBgNV
-BAYTAlVTMQ4wDAYDVQQIDAVUZXhhczETMBEGA1UECgwKTmluZSBOaW5lczEPMA0G
-A1UECwwGQ293Ym95MRAwDgYDVQQDDAdST09UIENBMB4XDTEzMDIyODA1MTAwMVoX
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-pBfPPmSFMBb1i2AI
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+9bky+h1WiQeV2poEyJSPOVAXThaxf3GOV+V/zrnY+DHNio/IRa4Z+/1Fwxs26+o7
+Qnkf9UqSZrKr/B7ilQ/Cb1sv3dLzIPAmfNuDjqPWb4eYT+B26n264znHlhvmWw==
 -----END CERTIFICATE-----
diff --git a/priv/ssl/server.crt b/priv/ssl/server.crt
index 0bdfaed..a777145 100644
--- a/priv/ssl/server.crt
+++ b/priv/ssl/server.crt
@@ -1,17 +1,26 @@
 -----BEGIN CERTIFICATE-----
-MIICpTCCAg6gAwIBAgIJAOvpU0y2e5J5MA0GCSqGSIb3DQEBBQUAMFUxCzAJBgNV
-BAYTAlVTMQ4wDAYDVQQIDAVUZXhhczETMBEGA1UECgwKTmluZSBOaW5lczEPMA0G
-A1UECwwGQ293Ym95MRAwDgYDVQQDDAdST09UIENBMB4XDTEzMDIyODA1MjMzNFoX
-DTMzMDIyMzA1MjMzNFowVzELMAkGA1UEBhMCVVMxDjAMBgNVBAgMBVRleGFzMRMw
-EQYDVQQKDApOaW5lIE5pbmVzMQ8wDQYDVQQLDAZDb3dib3kxEjAQBgNVBAMMCWxv
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+nGcNj0IS+dchbyqN7WF4X9h1iqD09qWeaw==
 -----END CERTIFICATE-----
diff --git a/priv/ssl/server.key b/priv/ssl/server.key
index b6f7374..0696d47 100644
--- a/priv/ssl/server.key
+++ b/priv/ssl/server.key
@@ -1,15 +1,28 @@
------BEGIN RSA PRIVATE KEY-----
-MIICXQIBAAKBgQDNtbUaMQLMdRz9ZJOouIAaqMI1xxHmxpVL7KjPZI9GGmjJ/T+o
-GtfkFjS3OaCjOhOJF8TjAKJUP30Jz4Oun8Uzj2vgSll2hwii+muY6a/+DCSiP3nN
-oDo8o2fU52YOnaHAmxfZmbeSlsZRlPGMOSRxyaBRvgSMvuo0eruxpC2K9QIDAQAB
-AoGAaD85c/h6bpq7Aj7CBbLaWKhFI3OqwsTITB22vsM7SE+B4zsP02UnG1OVi3UM
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-Rvm6H7kFDwPDuN23YnTOlTiho0zzCkclcIukhIVJ+dKz
------END RSA PRIVATE KEY-----
+-----BEGIN PRIVATE KEY-----
+MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDHyV/bSyb0qRaH
++7p6EnhikOXHsMZp5sGiTclHqt1XjZz1+W6ld2LRS7u2ri62Tisa7qCi0iU8UN5H
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+59rqGfHZizMRH0gxiC8P1Ui9dlZfnvdeBLUR/FD6XBSb450vRdcgG4AQ+HPECKkb
+kECHkBb542ymb/GqgutNLPzQ8n0Q1zO92CSX5KKmY2B+lEfer5NSc2c9gY261YMH
+AApeuDGbws/XXVLWnR1fGbH0
+-----END PRIVATE KEY-----
diff --git a/test/base64_handler_test.exs b/test/base64_handler_test.exs
index 3a19062..15e04dc 100644
--- a/test/base64_handler_test.exs
+++ b/test/base64_handler_test.exs
@@ -4,8 +4,8 @@ defmodule HTTParrot.Base64HandlerTest do
   import HTTParrot.Base64Handler
 
   setup do
-    new :cowboy_req
-    on_exit fn -> unload() end
+    new(:cowboy_req)
+    on_exit(fn -> unload() end)
     :ok
   end
 
diff --git a/test/basic_auth_handler_test.exs b/test/basic_auth_handler_test.exs
index e4170d4..0e7609c 100644
--- a/test/basic_auth_handler_test.exs
+++ b/test/basic_auth_handler_test.exs
@@ -4,32 +4,33 @@ defmodule HTTParrot.BasicAuthHandlerTest do
   import HTTParrot.BasicAuthHandler
 
   setup do
-    new :cowboy_req
-    new JSX
-    on_exit fn -> unload() end
+    new(:cowboy_req)
+    new(JSX)
+    on_exit(fn -> unload() end)
     :ok
   end
 
   test "is_authorized returns true if user and passwd match" do
-    expect(:cowboy_req, :binding, [{[:user, :req1], :user},
-                                   {[:passwd, :req1], :passwd}])
+    expect(:cowboy_req, :binding, [{[:user, :req1], :user}, {[:passwd, :req1], :passwd}])
     expect(:cowboy_req, :parse_header, [{["authorization", :req1], {:basic, :user, :passwd}}])
 
     assert is_authorized(:req1, :state) == {true, :req1, :user}
 
-    assert validate :cowboy_req
-    assert validate JSX
+    assert validate(:cowboy_req)
+    assert validate(JSX)
   end
 
-  test "is_authorized returns false if user and passwd doesn't match" do
-    expect(:cowboy_req, :binding, [{[:user, :req1], :user},
-                                   {[:passwd, :req1], :passwd}])
-    expect(:cowboy_req, :parse_header, [{["authorization", :req1], {:basic, :not_the_user, :passwd}}])
+  test "is_authorized returns false if user and passwd doesnt match" do
+    expect(:cowboy_req, :binding, [{[:user, :req1], :user}, {[:passwd, :req1], :passwd}])
+
+    expect(:cowboy_req, :parse_header, [
+      {["authorization", :req1], {:basic, :not_the_user, :passwd}}
+    ])
 
     assert is_authorized(:req1, :state) == {{false, "Basic realm=\"Fake Realm\""}, :req1, :state}
 
-    assert validate :cowboy_req
-    assert validate JSX
+    assert validate(:cowboy_req)
+    assert validate(JSX)
   end
 
   test "returns user and if it's authenticated" do
@@ -37,6 +38,6 @@ defmodule HTTParrot.BasicAuthHandlerTest do
 
     assert get_json(:req1, :user) == {:json, :req1, nil}
 
-    assert validate JSX
+    assert validate(JSX)
   end
 end
diff --git a/test/cache_handler_test.exs b/test/cache_handler_test.exs
index fea21ec..68eb658 100644
--- a/test/cache_handler_test.exs
+++ b/test/cache_handler_test.exs
@@ -4,9 +4,9 @@ defmodule HTTParrot.CacheHandlerTest do
   import HTTParrot.CacheHandler
 
   setup do
-    new HTTParrot.GeneralRequestInfo
-    new JSX
-    on_exit fn -> unload() end
+    new(HTTParrot.GeneralRequestInfo)
+    new(JSX)
+    on_exit(fn -> unload() end)
     :ok
   end
 
@@ -16,7 +16,7 @@ defmodule HTTParrot.CacheHandlerTest do
 
     assert get_json(:req1, :state) == {:json, :req2, :state}
 
-    assert validate HTTParrot.GeneralRequestInfo
-    assert validate JSX
+    assert validate(HTTParrot.GeneralRequestInfo)
+    assert validate(JSX)
   end
 end
diff --git a/test/deflate_handler_test.exs b/test/deflate_handler_test.exs
index 667b717..7c4043c 100644
--- a/test/deflate_handler_test.exs
+++ b/test/deflate_handler_test.exs
@@ -4,9 +4,9 @@ defmodule HTTParrot.DeflateHandlerTest do
   import HTTParrot.DeflateHandler
 
   setup do
-    new HTTParrot.GeneralRequestInfo
-    new JSX
-    on_exit fn -> unload() end
+    new(HTTParrot.GeneralRequestInfo)
+    new(JSX)
+    on_exit(fn -> unload() end)
     :ok
   end
 
@@ -16,15 +16,15 @@ defmodule HTTParrot.DeflateHandlerTest do
     expect(JSX, :prettify!, [{[:json], "json"}])
     expect(:cowboy_req, :set_resp_header, 3, :req3)
 
-    opened_zlib = :zlib.open
+    opened_zlib = :zlib.open()
     :zlib.deflateInit(opened_zlib)
     body = :zlib.deflate(opened_zlib, "json", :finish)
     :zlib.deflateEnd(opened_zlib)
 
     assert get_json(:req1, :state) == {body, :req3, :state}
 
-    assert validate HTTParrot.GeneralRequestInfo
-    assert validate JSX
-    assert validate :cowboy_req
+    assert validate(HTTParrot.GeneralRequestInfo)
+    assert validate(JSX)
+    assert validate(:cowboy_req)
   end
 end
diff --git a/test/delete_handler_test.exs b/test/delete_handler_test.exs
index 2700492..bf3e21e 100644
--- a/test/delete_handler_test.exs
+++ b/test/delete_handler_test.exs
@@ -4,10 +4,10 @@ defmodule HTTParrot.DeleteHandlerTest do
   import HTTParrot.DeleteHandler
 
   setup do
-    new :cowboy_req
-    new HTTParrot.GeneralRequestInfo
-    new JSX
-    on_exit fn -> unload() end
+    new(:cowboy_req)
+    new(HTTParrot.GeneralRequestInfo)
+    new(JSX)
+    on_exit(fn -> unload() end)
     :ok
   end
 
@@ -18,8 +18,8 @@ defmodule HTTParrot.DeleteHandlerTest do
 
     assert delete_resource(:req1, :state) == {true, :req3, :state}
 
-    assert validate :cowboy_req
-    assert validate HTTParrot.GeneralRequestInfo
-    assert validate JSX
+    assert validate(:cowboy_req)
+    assert validate(HTTParrot.GeneralRequestInfo)
+    assert validate(JSX)
   end
 end
diff --git a/test/get_handler_test.exs b/test/get_handler_test.exs
index a455817..2d342b3 100644
--- a/test/get_handler_test.exs
+++ b/test/get_handler_test.exs
@@ -4,9 +4,9 @@ defmodule HTTParrot.GetHandlerTest do
   import HTTParrot.GetHandler
 
   setup do
-    new HTTParrot.GeneralRequestInfo
-    new JSX
-    on_exit fn -> unload() end
+    new(HTTParrot.GeneralRequestInfo)
+    new(JSX)
+    on_exit(fn -> unload() end)
     :ok
   end
 
@@ -16,7 +16,7 @@ defmodule HTTParrot.GetHandlerTest do
 
     assert get_json(:req1, :state) == {:json, :req2, :state}
 
-    assert validate HTTParrot.GeneralRequestInfo
-    assert validate JSX
+    assert validate(HTTParrot.GeneralRequestInfo)
+    assert validate(JSX)
   end
 end
diff --git a/test/gzip_handler_test.exs b/test/gzip_handler_test.exs
index 9b73a31..cde3844 100644
--- a/test/gzip_handler_test.exs
+++ b/test/gzip_handler_test.exs
@@ -4,9 +4,9 @@ defmodule HTTParrot.GzipHandlerTest do
   import HTTParrot.GzipHandler
 
   setup do
-    new HTTParrot.GeneralRequestInfo
-    new JSX
-    on_exit fn -> unload() end
+    new(HTTParrot.GeneralRequestInfo)
+    new(JSX)
+    on_exit(fn -> unload() end)
     :ok
   end
 
@@ -20,8 +20,8 @@ defmodule HTTParrot.GzipHandlerTest do
 
     assert get_json(:req1, :state) == {body, :req3, :state}
 
-    assert validate HTTParrot.GeneralRequestInfo
-    assert validate JSX
-    assert validate :cowboy_req
+    assert validate(HTTParrot.GeneralRequestInfo)
+    assert validate(JSX)
+    assert validate(:cowboy_req)
   end
 end
diff --git a/test/httparrot_test.exs b/test/httparrot_test.exs
index 1ac208b..e3e4bab 100644
--- a/test/httparrot_test.exs
+++ b/test/httparrot_test.exs
@@ -11,10 +11,10 @@ defmodule HTTParrotTest do
 
   test "'prettify_json' prettifies body response if it's a JSON" do
     expect(:cowboy_req, :reply, [
-      {[:status, %{"content-length" => '14'}, "{\n  \"a\": \"b\"\n}", :req1], :req2}
+      {[:status, %{"content-length" => ~c"14"}, "{\n  \"a\": \"b\"\n}", :req1], :req2}
     ])
 
-    assert prettify_json(:status, %{"content-length" => '12'}, "{\"a\":\"b\"}", :req1) == :req2
+    assert prettify_json(:status, %{"content-length" => ~c"12"}, "{\"a\":\"b\"}", :req1) == :req2
     assert validate(:cowboy_req)
   end
 
diff --git a/test/request_store_test.exs b/test/request_store_test.exs
index 8c4ac68..f3e9457 100644
--- a/test/request_store_test.exs
+++ b/test/request_store_test.exs
@@ -1,12 +1,13 @@
 defmodule HTTParrot.RequestStoreTest do
   alias HTTParrot.RequestStore
   use ExUnit.Case
+
   test "save, retrieve, clear" do
     request = %{req: 1}
     RequestStore.clear(:test)
     RequestStore.store(:test, request)
     assert RequestStore.retrieve(:test) == [request]
-     RequestStore.clear(:test)
+    RequestStore.clear(:test)
     assert RequestStore.retrieve(:test) == []
   end
 end
diff --git a/test/retrieve_request_handler_tests.exs b/test/retrieve_request_handler_tests.exs
index f353c6a..1ee7da3 100644
--- a/test/retrieve_request_handler_tests.exs
+++ b/test/retrieve_request_handler_tests.exs
@@ -5,7 +5,7 @@ defmodule HTTParrot.RetrieveRequestHandlerTests do
 
   setup do
     HTTParrot.RequestStore.clear(:test)
-    on_exit fn -> unload() end
+    on_exit(fn -> unload() end)
     :ok
   end
 
diff --git a/test/store_request_handler_test.exs b/test/store_request_handler_test.exs
index 698de59..84e516f 100644
--- a/test/store_request_handler_test.exs
+++ b/test/store_request_handler_test.exs
@@ -12,15 +12,15 @@ defmodule HTTParrot.StoreRequestHandlerTests do
   test "store a request" do
     expect(:cowboy_req, :binding, [:key, :req1], :test)
     expect(HTTParrot.GeneralRequestInfo, :retrieve, 1, {:info, :req1})
-    assert get(:req1, :state) == {'{"saved":  "true"}', :req1, :state}
+    assert get(:req1, :state) == {~c'{"saved":  "true"}', :req1, :state}
     assert HTTParrot.RequestStore.retrieve(:test) == [:info]
   end
 
   test "store multiple requests" do
     expect(:cowboy_req, :binding, [:key, :req1], :test)
     expect(HTTParrot.GeneralRequestInfo, :retrieve, 1, {:info, :req1})
-    assert get(:req1, :state) == {'{"saved":  "true"}', :req1, :state}
-    assert get(:req2, :state) == {'{"saved":  "true"}', :req1, :state}
+    assert get(:req1, :state) == {~c'{"saved":  "true"}', :req1, :state}
+    assert get(:req2, :state) == {~c'{"saved":  "true"}', :req1, :state}
     assert HTTParrot.RequestStore.retrieve(:test) == [:info, :info]
   end
 end
diff --git a/test/user_agent_test.exs b/test/user_agent_test.exs
index d04d5fa..7d6d45c 100644
--- a/test/user_agent_test.exs
+++ b/test/user_agent_test.exs
@@ -4,9 +4,9 @@ defmodule HTTParrot.UserAgentHandlerTest do
   import HTTParrot.UserAgentHandler
 
   setup do
-    new :cowboy_req
-    new JSX
-    on_exit fn -> unload() end
+    new(:cowboy_req)
+    new(JSX)
+    on_exit(fn -> unload() end)
     :ok
   end
 
@@ -16,7 +16,7 @@ defmodule HTTParrot.UserAgentHandlerTest do
 
     assert get_json(:req1, :state) == {:json, :req1, :state}
 
-    assert validate :cowboy_req
-    assert validate JSX
+    assert validate(:cowboy_req)
+    assert validate(JSX)
   end
 end