diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6ed8346..cbdbf67 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,9 +15,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - pair:
-              elixir: 1.10.4
-              otp: 22.3.4
           - pair:
               elixir: 1.11.4
               otp: 23.2.7
diff --git a/lib/plug/cowboy.ex b/lib/plug/cowboy.ex
index 96d862e..b3e7a3f 100644
--- a/lib/plug/cowboy.ex
+++ b/lib/plug/cowboy.ex
@@ -349,7 +349,7 @@ defmodule Plug.Cowboy do
     {timeout, opts} = Keyword.pop(opts, :timeout)
 
     if timeout do
-      Logger.warn("the :timeout option for Cowboy webserver has no effect and must be removed")
+      Logger.warning("the :timeout option for Cowboy webserver has no effect and must be removed")
     end
 
     opts = Keyword.delete(opts, :otp_app)
diff --git a/mix.exs b/mix.exs
index 209488d..3b685bf 100644
--- a/mix.exs
+++ b/mix.exs
@@ -9,7 +9,7 @@ defmodule Plug.Cowboy.MixProject do
     [
       app: :plug_cowboy,
       version: @version,
-      elixir: "~> 1.10",
+      elixir: "~> 1.11",
       deps: deps(),
       package: package(),
       description: @description,