diff --git a/examples/with-purgecss/nuxt.config.js b/examples/with-purgecss/nuxt.config.js
index 26b6617790..86fe4838e3 100644
--- a/examples/with-purgecss/nuxt.config.js
+++ b/examples/with-purgecss/nuxt.config.js
@@ -4,7 +4,7 @@ import glob from 'glob-all'
 
 class TailwindExtractor {
   static extract(content) {
-    return content.match(/[A-z0-9-:/]+/g) || []
+    return content.match(/[A-Za-z0-9-:/]+/g) || []
   }
 }
 
diff --git a/test/unit/dynamic-routes.test.js b/test/unit/dynamic-routes.test.js
index e228381505..74c96c375f 100644
--- a/test/unit/dynamic-routes.test.js
+++ b/test/unit/dynamic-routes.test.js
@@ -13,7 +13,7 @@ describe('dynamic routes', () => {
       routerFile = routerFile
         .slice(routerFile.indexOf('routes: ['))
         .replace('routes: [', '[')
-        .replace(/ _[0-9A-z]+,/g, ' "",')
+        .replace(/ _[0-9A-Za-z]+,/g, ' "",')
       routerFile = routerFile.substr(
         routerFile.indexOf('['),
         routerFile.lastIndexOf(']') + 1
diff --git a/test/unit/route-name-splitter.test.js b/test/unit/route-name-splitter.test.js
index 9595788d4d..86cb29d1f9 100644
--- a/test/unit/route-name-splitter.test.js
+++ b/test/unit/route-name-splitter.test.js
@@ -13,7 +13,7 @@ describe('route-name-splitter', () => {
       routerFile = routerFile
         .slice(routerFile.indexOf('routes: ['))
         .replace('routes: [', '[')
-        .replace(/ _[0-9A-z]+,/g, ' "",')
+        .replace(/ _[0-9A-Za-z]+,/g, ' "",')
       routerFile = routerFile.substr(
         routerFile.indexOf('['),
         routerFile.lastIndexOf(']') + 1