diff --git a/backend/src/api/websocket-handler.ts b/backend/src/api/websocket-handler.ts
index 0f7445aef..7699a5a0d 100644
--- a/backend/src/api/websocket-handler.ts
+++ b/backend/src/api/websocket-handler.ts
@@ -80,7 +80,7 @@ class WebsocketHandler {
           }
 
           if (parsedMessage && parsedMessage['track-address']) {
-            if (/^([a-km-zA-HJ-NP-Z1-9]{26,35}|[a-km-zA-HJ-NP-Z1-9]{80}|[a-z]{2,5}1[ac-hj-np-z02-9]{8,87})$/
+            if (/^([a-km-zA-HJ-NP-Z1-9]{26,35}|[a-km-zA-HJ-NP-Z1-9]{80}|[a-z]{2,5}1[ac-hj-np-z02-9]{8,100}|[A-Z]{2,5}1[AC-HJ-NP-Z02-9]{8,100})$/
               .test(parsedMessage['track-address'])) {
               client['track-address'] = parsedMessage['track-address'];
             } else {
diff --git a/frontend/src/app/components/search-form/search-form.component.ts b/frontend/src/app/components/search-form/search-form.component.ts
index dcd3fab8c..098b42d1e 100644
--- a/frontend/src/app/components/search-form/search-form.component.ts
+++ b/frontend/src/app/components/search-form/search-form.component.ts
@@ -23,7 +23,7 @@ export class SearchFormComponent implements OnInit {
   searchForm: FormGroup;
   @Output() searchTriggered = new EventEmitter();
 
-  regexAddress = /^([a-km-zA-HJ-NP-Z1-9]{26,35}|[a-km-zA-HJ-NP-Z1-9]{80}|[bB]?[a-z]{2,5}1[ac-hj-np-z02-9]{8,87})$/;
+  regexAddress = /^([a-km-zA-HJ-NP-Z1-9]{26,35}|[a-km-zA-HJ-NP-Z1-9]{80}|[a-z]{2,5}1[ac-hj-np-z02-9]{8,100}|[A-Z]{2,5}1[AC-HJ-NP-Z02-9]{8,100})$/;
   regexBlockhash = /^[0]{8}[a-fA-F0-9]{56}$/;
   regexTransaction = /^[a-fA-F0-9]{64}$/;
   regexBlockheight = /^[0-9]+$/;