diff --git a/.github/lifeomic-probot.yml b/.github/lifeomic-probot.yml
index 20a0b27..505881d 100644
--- a/.github/lifeomic-probot.yml
+++ b/.github/lifeomic-probot.yml
@@ -1 +1 @@
-enforceSemanticCommits: false
+enforceSemanticCommits: true
diff --git a/test/index.test.ts b/test/index.test.ts
index a576e18..e3f4334 100644
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -4,9 +4,7 @@ import {
   AttemptOptions, AttemptContext
 } from '../src';
 
-function almostEqual (a: number, b: number, tolerance: number) {
-  return Math.abs(a - b) <= tolerance;
-}
+const almostEqual = (a: number, b: number, tolerance: number) => Math.abs(a - b) <= tolerance;
 
 const DELAY_TOLERANCE = parseInt(process.env.DELAY_TOLERANCE || '', 10) || 100;