diff --git a/app/utils/deep_link/index.ts b/app/utils/deep_link/index.ts
index bfa9e18ac..1776e75ce 100644
--- a/app/utils/deep_link/index.ts
+++ b/app/utils/deep_link/index.ts
@@ -118,12 +118,7 @@ export function parseDeepLink(deepLinkUrl: string): DeepLinkWithData {
     try {
         const url = removeProtocol(decodeURIComponent(deepLinkUrl));
 
-        if (
-            url.includes('../') ||
-            url.includes('/..') ||
-            url.includes('..%2f') ||
-            url.includes('%2f..')
-        ) {
+        if (isDeepLinkInvalid(url)) {
             return {type: DeepLink.Invalid, url: deepLinkUrl};
         }
 
@@ -158,6 +153,11 @@ export function parseDeepLink(deepLinkUrl: string): DeepLinkWithData {
     return {type: DeepLink.Invalid, url: deepLinkUrl};
 }
 
+function isDeepLinkInvalid(decodedUrl: string) {
+    const url = decodeURIComponent(decodedUrl);
+    return url.includes('../') || url.includes('/..');
+}
+
 export function matchDeepLink(url?: string, serverURL?: string, siteURL?: string) {
     if (!url || (!serverURL && !siteURL)) {
         return '';
diff --git a/app/utils/url/test.ts b/app/utils/url/test.ts
index c47d5ee64..c5e526961 100644
--- a/app/utils/url/test.ts
+++ b/app/utils/url/test.ts
@@ -196,9 +196,9 @@ describe('UrlUtils', () => {
                 expected: {type: DeepLinkType.Invalid},
             },
             {
-                name: 'should return null for encoded invalid deeplink',
+                name: 'should return null for double encoded invalid deeplink',
                 input: {
-                    url: DEEPLINK_URL_ROOT + '/ad-1/channels/%252f..%252ftown-square',
+                    url: DEEPLINK_URL_ROOT + '/ad-1/channels/%252f%252e.town-square',
                     serverURL: SERVER_URL,
                     siteURL: SITE_URL,
                 },