diff --git a/lib/memex/accounts.ex b/lib/memex/accounts.ex
index f35bbc3..13fde54 100644
--- a/lib/memex/accounts.ex
+++ b/lib/memex/accounts.ex
@@ -219,7 +219,7 @@ defmodule Memex.Accounts do
 
     with {:ok, query} <- UserToken.verify_change_email_token_query(token, context),
          %UserToken{sent_to: email} <- Repo.one(query),
-         {:ok, _} <- Repo.transaction(user_email_multi(user, email, context)) do
+         {:ok, _result} <- Repo.transaction(user_email_multi(user, email, context)) do
       :ok
     else
       _error_tuple -> :error
diff --git a/lib/memex/accounts/user.ex b/lib/memex/accounts/user.ex
index d96dadc..8af327a 100644
--- a/lib/memex/accounts/user.ex
+++ b/lib/memex/accounts/user.ex
@@ -140,7 +140,7 @@ defmodule Memex.Accounts.User do
     |> cast(attrs, [:email])
     |> validate_email()
     |> case do
-      %{changes: %{email: _}} = changeset -> changeset
+      %{changes: %{email: _email}} = changeset -> changeset
       %{} = changeset -> add_error(changeset, :email, dgettext("errors", "did not change"))
     end
   end
diff --git a/lib/memex/accounts/user_token.ex b/lib/memex/accounts/user_token.ex
index 74f387d..07aeba6 100644
--- a/lib/memex/accounts/user_token.ex
+++ b/lib/memex/accounts/user_token.ex
@@ -155,7 +155,7 @@ defmodule Memex.Accounts.UserToken do
     from t in __MODULE__, where: t.user_id == ^user.id
   end
 
-  def user_and_contexts_query(user, [_ | _] = contexts) do
+  def user_and_contexts_query(user, [_head | _rest] = contexts) do
     from t in __MODULE__, where: t.user_id == ^user.id and t.context in ^contexts
   end
 end
diff --git a/lib/memex_web/controllers/user_reset_password_controller.ex b/lib/memex_web/controllers/user_reset_password_controller.ex
index df8d61f..6d83552 100644
--- a/lib/memex_web/controllers/user_reset_password_controller.ex
+++ b/lib/memex_web/controllers/user_reset_password_controller.ex
@@ -40,7 +40,7 @@ defmodule MemexWeb.UserResetPasswordController do
   # leaked token giving the user access to the account.
   def update(conn, %{"user" => user_params}) do
     case Accounts.reset_user_password(conn.assigns.user, user_params) do
-      {:ok, _} ->
+      {:ok, _user} ->
         conn
         |> put_flash(:info, dgettext("prompts", "password reset successfully."))
         |> redirect(to: ~p"/users/log_in")
diff --git a/test/memex/accounts_test.exs b/test/memex/accounts_test.exs
index bc927b4..4269c4b 100644
--- a/test/memex/accounts_test.exs
+++ b/test/memex/accounts_test.exs
@@ -316,7 +316,7 @@ defmodule Memex.AccountsTest do
     test "deletes all tokens for the given user", %{user: user} do
       _session_token = Accounts.generate_user_session_token(user)
 
-      {:ok, _} =
+      {:ok, _user} =
         Accounts.update_user_password(user, valid_user_password(), %{
           "password" => "new valid password"
         })
diff --git a/test/support/data_case.ex b/test/support/data_case.ex
index 03d7088..ed308ce 100644
--- a/test/support/data_case.ex
+++ b/test/support/data_case.ex
@@ -64,7 +64,7 @@ defmodule Memex.DataCase do
     symbols = ~c"0123456789abcdef-"
     symbol_count = Enum.count(symbols)
 
-    for _ <- Range.new(1, length),
+    for _index <- 1..length//1,
         into: "",
         do: <<Enum.at(symbols, :rand.uniform(symbol_count - 1))>>
   end
diff --git a/test/support/fixtures.ex b/test/support/fixtures.ex
index 83afbcd..a768766 100644
--- a/test/support/fixtures.ex
+++ b/test/support/fixtures.ex
@@ -47,8 +47,8 @@ defmodule Memex.Fixtures do
       |> Atom.to_string()
       |> Email.generate_email(Accounts.get_user!(user_id), attrs)
 
-    [_, html_token | _] = email.html_body |> String.split("[TOKEN]")
-    [_, text_token | _] = email.text_body |> String.split("[TOKEN]")
+    [_prefix, html_token | _postfix] = email.html_body |> String.split("[TOKEN]")
+    [_prefix, text_token | _postfix] = email.text_body |> String.split("[TOKEN]")
     ^text_token = html_token
   end