diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 0043e5b..ccfbd1a 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -13,15 +13,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - elixir: 1.11.x
-            otp: 22
-            os: ubuntu-20.04
-          - elixir: 1.11.x
-            otp: 23
-            os: ubuntu-20.04
-          - elixir: 1.12.x
-            otp: 23
-            os: ubuntu-20.04
           - elixir: 1.13.x
             otp: 24
             os: ubuntu-20.04
diff --git a/mix.exs b/mix.exs
index 5346cb5..d11d3e2 100644
--- a/mix.exs
+++ b/mix.exs
@@ -10,7 +10,7 @@ defmodule SparklineSvg.MixProject do
       name: "Sparkline SVG",
       description: "Sparkline SVG is an Elixir library to generate SVG sparkline charts.",
       version: @version,
-      elixir: "~> 1.11",
+      elixir: "~> 1.13",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       package: package(),