diff --git a/rebar.config b/rebar.config
index a2e2f36..8d8b41a 100644
--- a/rebar.config
+++ b/rebar.config
@@ -40,11 +40,11 @@
 ]}.
 
 {project_plugins, [
-    {rebar3_hex, "~> 7.0.8"},
-    {rebar3_lint, "~> 3.2.6"},
-    {rebar3_ex_doc, "~> 0.2.25"},
-    {erlfmt, "~> 1.6.0"},
-    {covertool, "~> 2.0.7"}
+    {rebar3_hex, "~> 7.0"},
+    {rebar3_lint, "~> 4.0"},
+    {rebar3_ex_doc, "~> 0.2"},
+    {erlfmt, "~> 1.6"},
+    {covertool, "~> 2.0"}
 ]}.
 
 {hex, [{doc, #{provider => ex_doc}}]}.
@@ -81,7 +81,7 @@
         ruleset => erl_files
     },
     #{
-        dirs => ["test/eunit"],
+        dirs => ["test"],
         filter => "*.erl",
         rules => [
             {elvis_text_style, line_length, #{limit => 100}},
diff --git a/src/accept_encoding_header.erl b/src/accept_encoding_header.erl
index b43383f..62d07b1 100644
--- a/src/accept_encoding_header.erl
+++ b/src/accept_encoding_header.erl
@@ -51,14 +51,14 @@ negotiate(Header, Alternatives) ->
 
     case CCs of
         [] -> <<"identity">>;
-        _ -> negotiate_(CCs, Alternatives)
+        _ -> negotiate_1(CCs, Alternatives)
     end.
 
 %%====================================================================
 %% Private Parts
 %%====================================================================
 
-negotiate_(CCs, Alternatives) ->
+negotiate_1(CCs, Alternatives) ->
     Alts = lists:map(
         fun(Alt) ->
             {A, Tag} = accept_neg:alt_tag(Alt),