diff --git a/mix.lock b/mix.lock
index 94f755f04..bd3929ff7 100644
--- a/mix.lock
+++ b/mix.lock
@@ -22,7 +22,7 @@
   "ex_ftx": {:hex, :ex_ftx, "0.0.7", "6c58b96a3cf2ceeeece41c09485d6307f5bda2db89be289b095e306dfca0320d", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:mapail, "~> 1.0.2", [hex: :mapail, repo: "hexpm", optional: false]}, {:proper_case, "~> 1.0", [hex: :proper_case, repo: "hexpm", optional: false]}, {:timex, "~> 3.5", [hex: :timex, repo: "hexpm", optional: false]}], "hexpm", "7a6fd2d402c31e0a5cb05ae80d4cf2bb1907bc7b53a08ba9ecf70787d8780418"},
   "ex_gdax": {:hex, :ex_gdax, "0.1.6", "4bd3bdb3058282f1445e98e43ecacf65ae5502b637fd539351a6d4c42e16ca12", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:poison, "~> 4.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm", "3126bccaf3f535e912dabeaa24124a88991a24fd330a7c7b6147a529c8552aa9"},
   "ex_huobi": {:hex, :ex_huobi, "0.0.2", "0caf50a9b222851e6679d3bb47510c9ceaf7e22fdd21b0a37f28c36f25f2ca61", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:mapail, "~> 1.0", [hex: :mapail, repo: "hexpm", optional: false]}], "hexpm", "3feb1d801edfee6c12b60216e8a003646b00c7d293b54146985bd0d1c2d48286"},
-  "ex_okex": {:hex, :ex_okex, "0.4.0", "42cf09d1d707798ab470987a7eafeb3b9f09cca0a3e2503234f75e1877f46e20", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:mapail, "~> 1.0", [hex: :mapail, repo: "hexpm", optional: false]}, {:websockex, "~> 0.4.0", [hex: :websockex, repo: "hexpm", optional: false]}], "hexpm", "27e69a9d3cf37834914383b0b8d9aa4d4c784ecdf1797c8f72235bf40bf2b139"},
+  "ex_okex": {:hex, :ex_okex, "0.5.0", "73c96a762b06e0630f2dc922f6b5d8e5700e162b64e07c22f8f164f8a55f0fd8", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:mapail, "~> 1.0", [hex: :mapail, repo: "hexpm", optional: false]}, {:websockex, "~> 0.4.0", [hex: :websockex, repo: "hexpm", optional: false]}], "hexpm", "a5aa160fd38af287e636ed0964ab3d8118dafee0b167a30455facb2370131cfe"},
   "ex_unit_notifier": {:hex, :ex_unit_notifier, "1.1.0", "a4d1a027d975a2ba84cec60200e3cb095fe1de6c6b63091ca0880e83830b09bb", [:mix], [], "hexpm", "12d78f3a62c521ee4c9f18bd01ea3b960a3200d5ca21a383b0707f4228486c4e"},
   "exactor": {:hex, :exactor, "2.2.4", "5efb4ddeb2c48d9a1d7c9b465a6fffdd82300eb9618ece5d34c3334d5d7245b1", [:mix], [], "hexpm", "1222419f706e01bfa1095aec9acf6421367dcfab798a6f67c54cf784733cd6b5"},
   "exconstructor": {:hex, :exconstructor, "1.1.0", "272623a7b203cb2901c20cbb92c5c3ab103cc0087ff7c881979e046043346752", [:mix], [], "hexpm", "0edd55e8352e04dabf71f35453a57650175c7d7e6af707b1d3df610e5052afe0"},