diff --git a/mix.exs b/mix.exs
index 4b345cdc..fe7657f3 100644
--- a/mix.exs
+++ b/mix.exs
@@ -72,7 +72,7 @@ defmodule App.MixProject do
       {:fields, "~> 2.10.3"},
 
       # Useful functions: github.com/dwyl/useful
-      {:useful, "~> 1.12.0", override: true},
+      {:useful, "~> 1.12.1", override: true},
       # See: github.com/dwyl/useful/issues/17
       {:atomic_map, "~> 0.9.3"},
 
diff --git a/mix.lock b/mix.lock
index eaa5b24b..72e376d3 100644
--- a/mix.lock
+++ b/mix.lock
@@ -68,7 +68,7 @@
   "timex": {:hex, :timex, "3.7.11", "bb95cb4eb1d06e27346325de506bcc6c30f9c6dea40d1ebe390b262fad1862d1", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.20", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 1.1", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "8b9024f7efbabaf9bd7aa04f65cf8dcd7c9818ca5737677c7b76acbc6a94d1aa"},
   "tzdata": {:hex, :tzdata, "1.1.1", "20c8043476dfda8504952d00adac41c6eda23912278add38edc140ae0c5bcc46", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "a69cec8352eafcd2e198dea28a34113b60fdc6cb57eb5ad65c10292a6ba89787"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
-  "useful": {:hex, :useful, "1.12.0", "70c78c519ed2855a3c1f6964d184c42cb1a67cb92609f23c3981c7bb4c2ae83f", [:mix], [], "hexpm", "33720c26e6285841bd6e4b215f9be450c0703ef87487046075ca23d963c31002"},
+  "useful": {:hex, :useful, "1.12.1", "972d68f402226d3c82aa4496ac3977eee2a3f3f05bdc781e849e9941e5ac3b8d", [:mix], [{:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "897554c252c765be2aaec9ba6bc7a77e6bc101a70b40cc1c09416a6be707f2cf"},
   "websock": {:hex, :websock, "0.5.2", "b3c08511d8d79ed2c2f589ff430bd1fe799bb389686dafce86d28801783d8351", [:mix], [], "hexpm", "925f5de22fca6813dfa980fb62fd542ec43a2d1a1f83d2caec907483fe66ff05"},
   "websock_adapter": {:hex, :websock_adapter, "0.5.3", "4908718e42e4a548fc20e00e70848620a92f11f7a6add8cf0886c4232267498d", [:mix], [{:bandit, ">= 0.6.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.6", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "cbe5b814c1f86b6ea002b52dd99f345aeecf1a1a6964e209d208fb404d930d3d"},
 }