diff --git a/mix.lock b/mix.lock
index b519e90..bdc1aa5 100644
--- a/mix.lock
+++ b/mix.lock
@@ -7,7 +7,7 @@
   "erlex": {:hex, :erlex, "0.2.8", "cd8116f20f3c0afe376d1e8d1f0ae2452337729f68be016ea544a72f767d9c12", [:mix], [], "hexpm", "9d66ff9fedf69e49dc3fd12831e12a8a37b76f8651dd21cd45fcf5561a8a7590"},
   "ex_doc": {:hex, :ex_doc, "0.40.2", "f50edec428c4b0a457a167de42414c461122a3585a99515a69d09fff19e5597e", [:mix], [{:earmark_parser, "~> 1.4.44", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "4fa426e2beb47854a162e2c488727fdec51cd4692e319b23810c2804cb1a40fe"},
   "ex_license": {:hex, :ex_license, "0.1.1", "bbdaba704f861894da3ae80e4399984379f19de1cca4ecf7d799616c832b8821", [:mix], [], "hexpm", "dd95aaaba0c9c6f0e9be2db3e9fac0bf69784557e04f700f94e90629f5e24e1d"},
-  "ex_machina": {:hex, :ex_machina, "2.8.0", "a0e847b5712065055ec3255840e2c78ef9366634d62390839d4880483be38abe", [: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", "79fe1a9c64c0c1c1fab6c4fa5d871682cb90de5885320c187d117004627a7729"},
+  "ex_machina": {:hex, :ex_machina, "2.8.1", "be50262d132107c2e3f9ccbbe0124118b944e3c2480459b59a712befc59f0d52", [: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", "f25b8aab1c2765507a595f8fa1bbd3c180357fae49f8cdc720747f7ce5128cf8"},
   "excoveralls": {:hex, :excoveralls, "0.18.5", "e229d0a65982613332ec30f07940038fe451a2e5b29bce2a5022165f0c9b157e", [:mix], [{:castore, "~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "523fe8a15603f86d64852aab2abe8ddbd78e68579c8525ae765facc5eae01562"},
   "faker": {:hex, :faker, "0.18.0", "943e479319a22ea4e8e39e8e076b81c02827d9302f3d32726c5bf82f430e6e14", [:mix], [], "hexpm", "bfbdd83958d78e2788e99ec9317c4816e651ad05e24cfd1196ce5db5b3e81797"},
   "file_system": {:hex, :file_system, "1.1.1", "31864f4685b0148f25bd3fbef2b1228457c0c89024ad67f7a81a3ffbc0bbad3a", [:mix], [], "hexpm", "7a15ff97dfe526aeefb090a7a9d3d03aa907e100e262a0f8f7746b78f8f87a5d"},