diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 1479d358..188a7660 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -21,12 +21,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - elixir: "1.12"
-            otp: "24"
-          - elixir: "1.13"
-            otp: "24"
-          - elixir: "1.14"
-            otp: "25"
           - elixir: "1.15"
             otp: "26"
             dialyzer: true
diff --git a/CHANGELOG b/CHANGELOG
index 0eba6197..c3abc6cd 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,6 @@
 # 2.0.0 (unreleased)
   - BREAKING CHANGE: Remove generated defs/0 function
+  - Drop support for Elixir < 1.15
 
 # 1.7.8
   - Fix warnings of unknown JSON modules when a JSON library is not installed
diff --git a/mix.exs b/mix.exs
index a4b6f335..0c03a0d6 100644
--- a/mix.exs
+++ b/mix.exs
@@ -5,7 +5,7 @@ defmodule Protox.Mixfile do
     [
       app: :protox,
       version: "1.7.8",
-      elixir: "~> 1.12",
+      elixir: "~> 1.15",
       build_embedded: Mix.env() == :prod,
       start_permanent: Mix.env() == :prod,
       deps: deps(),