diff --git a/mix.lock b/mix.lock
index 53976d34..1d94779a 100644
--- a/mix.lock
+++ b/mix.lock
@@ -39,7 +39,7 @@
   "ex_machina": {:hex, :ex_machina, "2.7.0", "b792cc3127fd0680fecdb6299235b4727a4944a09ff0fa904cc639272cd92dc7", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm", "419aa7a39bde11894c87a615c4ecaa52d8f107bbdd81d810465186f783245bf8"},
   "excoveralls": {:hex, :excoveralls, "0.12.1", "a553c59f6850d0aff3770e4729515762ba7c8e41eedde03208182a8dc9d0ce07", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "5c1f717066a299b1b732249e736c5da96bb4120d1e55dc2e6f442d251e18a812"},
   "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [:mix], [{:jsx, "~> 2.8.0", [hex: :jsx, repo: "hexpm", optional: false]}], "hexpm"},
-  "exsync": {:hex, :exsync, "0.2.3", "a1ac11b4bd3808706003dbe587902101fcc1387d9fc55e8b10972f13a563dd15", [:mix], [{:file_system, "~> 0.2", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm", "23b6b186a2caa1cf5c0c4dfea9bd181d21d80a4032594d2f7c27d7ca78caa51d"},
+  "exsync": {:hex, :exsync, "0.4.0", "41d1f1975a387ba7983c5b341541d9feaa90b9b654eaf245cde814d26dcea1c5", [:mix], [{:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm", "e1c4aed25806f1f9b60c6373a4b3f0e0db06e1d00e111e77eab9f21a997a5eef"},
   "faker": {:hex, :faker, "0.17.0", "671019d0652f63aefd8723b72167ecdb284baf7d47ad3a82a15e9b8a6df5d1fa", [:mix], [], "hexpm", "a7d4ad84a93fd25c5f5303510753789fc2433ff241bf3b4144d3f6f291658a6a"},
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
   "floki": {:hex, :floki, "0.34.2", "5fad07ef153b3b8ec110b6b155ec3780c4b2c4906297d0b4be1a7162d04a7e02", [:mix], [], "hexpm", "26b9d50f0f01796bc6be611ca815c5e0de034d2128e39cc9702eee6b66a4d1c8"},