diff --git a/src/components/Instance/index.tsx b/src/components/Instance/index.tsx
index ffdb5a89..16b13b9d 100644
--- a/src/components/Instance/index.tsx
+++ b/src/components/Instance/index.tsx
@@ -96,7 +96,10 @@ const ComponentInstance: React.FC<Props> = ({
             scopes: ['read', 'write', 'follow', 'push'],
             redirectUri,
             code: promptResult.params.code,
-            extraParams: { grant_type: 'authorization_code' }
+            extraParams: {
+              grant_type: 'authorization_code',
+              ...(request.codeVerifier && { code_verifier: request.codeVerifier })
+            }
           },
           { tokenEndpoint: `https://${variables.domain}/oauth/token` }
         )