diff --git a/src/main/java/org/asteriskjava/manager/internal/ManagerConnectionImpl.java b/src/main/java/org/asteriskjava/manager/internal/ManagerConnectionImpl.java
index 74931d84f..7cfbb8a7c 100644
--- a/src/main/java/org/asteriskjava/manager/internal/ManagerConnectionImpl.java
+++ b/src/main/java/org/asteriskjava/manager/internal/ManagerConnectionImpl.java
@@ -67,18 +67,18 @@ public class ManagerConnectionImpl extends Lockable implements ManagerConnection
     // NOTE: identifier is AMI_VERSION, defined in include/asterisk/manager.h
     // AMI version consists of MAJOR.BREAKING.NON-BREAKING.
     private static final String[] SUPPORTED_AMI_VERSIONS = {
-
-            "2.6", // Asterisk 13
-            "2.7", // Asterisk 13.2
-            "2.8", // Asterisk >13.5
-            "2.9", // Asterisk >13.3
-            "3.1", // Asterisk =14.3
-            "3.2", // Asterisk 14.4.0
-            "4.0", // Asterisk 15
-            "5.0", // Asterisk 16
-            "6.0", // Asterisk 17
-            "7.0", // Asterisk 18
-            "10.0.0", // Asterisk 20
+        "2.6", // Asterisk 13
+        "2.7", // Asterisk 13.2
+        "2.8", // Asterisk >13.5
+        "2.9", // Asterisk >13.3
+        "3.1", // Asterisk =14.3
+        "3.2", // Asterisk 14.4.0
+        "4.0", // Asterisk 15
+        "5.0", // Asterisk 16
+        "6.0", // Asterisk 17
+        "7.0", // Asterisk 18
+        "8.0", // Asterisk 19
+        "9.0", // Asterisk 20
     };
 
     private static final AtomicLong idCounter = new AtomicLong(0);