diff --git a/CHANGELOG.md b/CHANGELOG.md
index db374d858e..4930f798f8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 ### Fixes
 - [#2502](https://github.com/poanetwork/blockscout/pull/2502) - increase reward task timeout
+- [#2496](https://github.com/poanetwork/blockscout/pull/2496) - fix docker build
 - [#2459](https://github.com/poanetwork/blockscout/pull/2459) - fix top addresses query
 - [#2425](https://github.com/poanetwork/blockscout/pull/2425) - Force to show address view for checksummed address even if it is not in DB
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 97580300c1..f73c4b34f0 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM bitwalker/alpine-elixir-phoenix:1.9.1
+FROM bitwalker/alpine-elixir-phoenix:1.9.0
 
 RUN apk --no-cache --update add alpine-sdk gmp-dev automake libtool inotify-tools autoconf python
 
diff --git a/mix.exs b/mix.exs
index af903bbdb0..c6c74689f9 100644
--- a/mix.exs
+++ b/mix.exs
@@ -14,7 +14,7 @@ defmodule BlockScout.Mixfile do
         plt_add_apps: ~w(ex_unit mix)a,
         ignore_warnings: ".dialyzer-ignore"
       ],
-      elixir: "~> 1.9.1",
+      elixir: "~> 1.9",
       preferred_cli_env: [
         coveralls: :test,
         "coveralls.detail": :test,