diff --git a/docker/build.sh b/docker/build.sh
index 964ac57..b6f83ad 100755
--- a/docker/build.sh
+++ b/docker/build.sh
@@ -3,7 +3,7 @@
 set -eu
 
 apk --update add perl libpq perl-crypt-rijndael perl-io-socket-ssl perl-net-ssleay su-exec shared-mime-info libressl imagemagick imagemagick-perlmagick
-sh $(dirname $0)/install-dev-env.sh
+apk --update add --virtual .build-deps build-base perl-utils perl-dev postgresql-dev vim wget zlib-dev
 
 cpan notest Carton Config::FromHash
 carton install --without test
diff --git a/docker/install-dev-env.sh b/docker/install-dev-env.sh
deleted file mode 100644
index 2f219d7..0000000
--- a/docker/install-dev-env.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env sh
-
-apk --update add --virtual .build-deps build-base perl-utils perl-dev postgresql-dev vim wget zlib-dev
\ No newline at end of file