diff --git a/src/ua-parser.js b/src/ua-parser.js
index 49909fa..48b7681 100755
--- a/src/ua-parser.js
+++ b/src/ua-parser.js
@@ -261,6 +261,12 @@
             /(yabrowser)\/([\w\.]+)/i                                           // Yandex
             ], [[NAME, 'Yandex'], VERSION], [
 
+            /(Avast)\/([\w\.]+)/i                                               // Avast Secure Browser
+            ], [[NAME, 'Avast Secure Browser'], VERSION], [
+
+            /(AVG)\/([\w\.]+)/i                                                 // AVG Secure Browser
+            ], [[NAME, 'AVG Secure Browser'], VERSION], [
+
             /(puffin)\/([\w\.]+)/i                                              // Puffin
             ], [[NAME, 'Puffin'], VERSION], [
 
diff --git a/test/browser-test.json b/test/browser-test.json
index 58ef6cc..bf58843 100644
--- a/test/browser-test.json
+++ b/test/browser-test.json
@@ -89,6 +89,26 @@
             "major"   : "undefined"
         }
     },
+    {
+        "desc"    : "Avast Secure Browser",
+        "ua"      : "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36 Avast/72.0.1174.122",
+        "expect"  :
+        {
+            "name"    : "Avast Secure Browser",
+            "version" : "72.0.1174.122",
+            "major"   : "72"
+        }
+    },
+    {
+        "desc"    : "AVG Secure Browser",
+        "ua"      : "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36 AVG/72.0.719.123",
+        "expect"  :
+        {
+            "name"    : "AVG Secure Browser",
+            "version" : "72.0.719.123",
+            "major"   : "72"
+        }
+    },
     {
         "desc"    : "Baidu",
         "ua"      : "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; baidubrowser 1.x)",