diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2ef6367..d309f57 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -21,6 +21,6 @@ jobs:
       - uses: erlef/setup-beam@v1
         with:
           otp-version: ${{matrix.otp}}
-          rebar3-version: 3.20.0
+          rebar3-version: 3.24.0
       - run: |
           rebar3 eunit
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index f3a53ae..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-language: erlang
-
-notifications:
-  email: false
-
-otp_release:
-  - 21.3
-
-script:
-  - wget https://s3.amazonaws.com/rebar3/rebar3
-  - chmod 755 rebar3
-  - ./rebar3 compile
-  - ./rebar3 eunit -v
diff --git a/rebar.config b/rebar.config
index ec3c33b..eae5c63 100644
--- a/rebar.config
+++ b/rebar.config
@@ -4,7 +4,7 @@
             {w, all},
             warn_export_all]}.
 
-{plugins, [pc]}.
+{plugins, [{pc, "1.15.0"}]}.
 
 {provider_hooks, [
   {pre, [
diff --git a/src/snappyer.erl b/src/snappyer.erl
index 4912aff..9732c78 100644
--- a/src/snappyer.erl
+++ b/src/snappyer.erl
@@ -26,8 +26,7 @@
 
 -spec init() -> ok.
 init() ->
-  _ = erlang:load_nif(so_path(), 0),
-  ok.
+  ok = erlang:load_nif(so_path(), 0).
 
 -spec compress(iodata()) -> {ok, binary()} | {error, binary()}.
 compress(_IoList) ->