diff --git a/services/circleci/circleci.tester.js b/services/circleci/circleci.tester.js
index 2320619f8b61d315984a0f63f830cdb505867b55..2cdb7d85dd329673454a302ea5b3c92b6580cce8 100644
--- a/services/circleci/circleci.tester.js
+++ b/services/circleci/circleci.tester.js
@@ -75,5 +75,5 @@ t.create('circle ci (invalid json)')
   .expectJSON({
     name: 'build',
     value: 'invalid response data',
-    color: 'lightgray',
+    color: 'lightgrey',
   })
diff --git a/services/dependabot/dependabot.tester.js b/services/dependabot/dependabot.tester.js
index 7a3f0f89f74e1780838b0733cb589660c23eb43d..f2ae943761d3bea5f1ad2306f4a3a7af60d5c4cb 100644
--- a/services/dependabot/dependabot.tester.js
+++ b/services/dependabot/dependabot.tester.js
@@ -21,7 +21,7 @@ t.create('semver stability (invalid error)')
   .expectJSON({
     name: 'semver stability',
     value: 'invalid',
-    color: 'lightgray',
+    color: 'lightgrey',
   })
 
 t.create('semver stability (missing dependency)')
diff --git a/services/github/github-issues.tester.js b/services/github/github-issues.tester.js
index 488d579d2b925cbfd8fcdc9a5773846126083c50..725dbc61f0cd819984ce34c1430df3bf804a2a60 100644
--- a/services/github/github-issues.tester.js
+++ b/services/github/github-issues.tester.js
@@ -99,13 +99,14 @@ t.create('GitHub open issues by label (raw)')
     })
   )
 
-// See #1870
-t.create('GitHub open issues by label including slash charactr (raw)')
+// https://github.com/badges/shields/issues/1870
+t.create('GitHub open issues by label including slash character (raw)')
   .get('/issues-raw/IgorNovozhilov/ndk/@ndk/cfg.json')
   .expectJSONTypes(
     Joi.object().keys({
       name: 'open @ndk/cfg issues',
-      value: isMetric,
+      // Not always > 0.
+      value: Joi.alternatives(isMetric, Joi.equal('0')),
     })
   )