diff --git a/.gitignore b/.gitignore
index a214ad1..18b739d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+doc/
+rebar3.carshdump
 .eunit
 deps
 *.o
diff --git a/rebar.config b/rebar.config
index eecee54..951c356 100644
--- a/rebar.config
+++ b/rebar.config
@@ -41,6 +41,6 @@
 
 {alias, [{test, [format, lint, xref, dialyzer, eunit, cover]}]}.
 
-{plugins, [rebar3_lint, {rebar3_format, "~> 0.8.1"}]}.
+{project_plugins, [rebar3_hex, rebar3_lint, {rebar3_format, "~> 0.8.1"}]}.
 
 {format, [{files, ["src/*.erl", "include/*.hrl"]}]}.