diff --git a/.travis.yml b/.travis.yml
index 6cb49517..a766af48 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ language: node_js
 node_js:
   - 12
   - 10
-  - 8.15
+  - 8.16
 
 # Trigger a push build on release and greenkeeper branches + PRs build on every branches
 # Avoid double build on PRs (See https://github.com/travis-ci/travis-ci/issues/1147)
diff --git a/README.md b/README.md
index f539dd8a..0c66424d 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,8 @@ With this example:
 - the shell command `./verify.sh` will be executed on the [verify conditions step](https://github.com/semantic-release/semantic-release#release-steps)
 - the shell command `./publish.sh 1.0.0 master 3 870668040000` (for the release of version `1.0.0` from branch `master` with `3` commits on `August 4th, 1997 at 2:14 AM`) will be executed on the [publish step](https://github.com/semantic-release/semantic-release#release-steps)
 
+**Note**: it's required to define a plugin for the [analyze commits step](https://github.com/semantic-release/semantic-release#release-steps). If no [analyzeCommitsCmd](#analyzecommitscmd) is defined the plugin [@semantic-release/commit-analyzer](https://github.com/semantic-release/commit-analyzer) must be defined in the `plugins` list.
+
 ## Configuration
 
 ### Options
diff --git a/lib/exec.js b/lib/exec.js
index 63c32b85..ad621acb 100644
--- a/lib/exec.js
+++ b/lib/exec.js
@@ -10,14 +10,8 @@ module.exports = async (cmdProp, {shell, execCwd, ...config}, {cwd, env, stdout,
 
   const result = execa(script, {shell: shell || true, cwd: execCwd ? path.resolve(cwd, execCwd) : cwd, env});
 
-  result.stdout.pipe(
-    stdout,
-    {end: false}
-  );
-  result.stderr.pipe(
-    stderr,
-    {end: false}
-  );
+  result.stdout.pipe(stdout, {end: false});
+  result.stderr.pipe(stderr, {end: false});
 
   return (await result).stdout.trim();
 };
diff --git a/package.json b/package.json
index 53fc59b6..f344dffe 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@semantic-release/error": "^2.1.0",
     "aggregate-error": "^3.0.0",
     "debug": "^4.0.0",
-    "execa": "^3.0.0",
+    "execa": "^3.2.0",
     "lodash": "^4.17.4",
     "parse-json": "^5.0.0"
   },
@@ -28,7 +28,7 @@
     "xo": "^0.25.0"
   },
   "engines": {
-    "node": ">=8.15"
+    "node": ">=8.16"
   },
   "files": [
     "lib",