diff --git a/desktop/src/main/java/bisq/desktop/util/GUIUtil.java b/desktop/src/main/java/bisq/desktop/util/GUIUtil.java
index a7ddf443909..04ae97f7b39 100644
--- a/desktop/src/main/java/bisq/desktop/util/GUIUtil.java
+++ b/desktop/src/main/java/bisq/desktop/util/GUIUtil.java
@@ -1129,6 +1129,7 @@ public static RegexValidator addressRegexValidator() {
         RegexValidator regexValidator = new RegexValidator();
         String portRegexPattern = "(0|[1-9][0-9]{0,3}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])";
         String onionV2RegexPattern = String.format("[a-zA-Z2-7]{16}\\.onion(?:\\:%1$s)?", portRegexPattern);
+        String onionV3RegexPattern = String.format("[a-zA-Z2-7]{56}\\.onion(?:\\:%1$s)?", portRegexPattern);
         String ipv4RegexPattern = String.format("(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}" +
                 "(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)" +
                 "(?:\\:%1$s)?", portRegexPattern);
@@ -1152,8 +1153,8 @@ public static RegexValidator addressRegexValidator() {
                 ")";                                                   // (IPv4-Embedded IPv6 Address)
         ipv6RegexPattern = String.format("(?:%1$s)|(?:\\[%1$s\\]\\:%2$s)", ipv6RegexPattern, portRegexPattern);
         String fqdnRegexPattern = String.format("(((?!-)[a-zA-Z0-9-]{1,63}(?<!-)\\.)+(?!onion)[a-zA-Z]{2,63}(?:\\:%1$s)?)", portRegexPattern);
-        regexValidator.setPattern(String.format("^(?:(?:(?:%1$s)|(?:%2$s)|(?:%3$s)|(?:%4$s)),\\s*)*(?:(?:%1$s)|(?:%2$s)|(?:%3$s)|(?:%4$s))*$",
-                onionV2RegexPattern, ipv4RegexPattern, ipv6RegexPattern, fqdnRegexPattern));
+        regexValidator.setPattern(String.format("^(?:(?:(?:%1$s)|(?:%2$s)|(?:%3$s)|(?:%4$s)|(?:%5$s)),\\s*)*(?:(?:%1$s)|(?:%2$s)|(?:%3$s)|(?:%4$s)|(?:%5$s))*$",
+                onionV2RegexPattern, onionV3RegexPattern, ipv4RegexPattern, ipv6RegexPattern, fqdnRegexPattern));
         return regexValidator;
     }
 }
diff --git a/desktop/src/test/java/bisq/desktop/util/GUIUtilTest.java b/desktop/src/test/java/bisq/desktop/util/GUIUtilTest.java
index fe6e058d05c..c898a2fa9e9 100644
--- a/desktop/src/test/java/bisq/desktop/util/GUIUtilTest.java
+++ b/desktop/src/test/java/bisq/desktop/util/GUIUtilTest.java
@@ -141,7 +141,8 @@ public void testAddressRegexValidator() {
         assertFalse(regexValidator.validate("abcdefghijklmnop.onion:").isValid);
 
         // onion v3 addresses
-        assertFalse(regexValidator.validate("32zzibxmqi2ybxpqyggwwuwz7a3lbvtzoloti7cxoevyvijexvgsfeid.onion:8333").isValid);
+        assertFalse(regexValidator.validate("32zzibxmqi2ybxpqyggwwuwz7a3lbvtzoloti7cxoevyvijexvgsfei.onion:8333").isValid); // 1 missing char 
+        assertTrue(regexValidator.validate("wizseedscybbttk4bmb2lzvbuk2jtect37lcpva4l3twktmkzemwbead.onion:8000").isValid);
 
         // ipv4 addresses
         assertTrue(regexValidator.validate("12.34.56.78").isValid);