diff --git a/packages/pl-api/lib/client/media.ts b/packages/pl-api/lib/client/media.ts
index 9f57089ab..0fdc03518 100644
--- a/packages/pl-api/lib/client/media.ts
+++ b/packages/pl-api/lib/client/media.ts
@@ -16,7 +16,7 @@ const media = (client: PlApiBaseClient) => ({
   uploadMedia: async (params: UploadMediaParams, meta?: RequestMeta) => {
     const response = await client.request(
       client.features.mediaV2 ? '/api/v2/media' : '/api/v1/media',
-      { ...meta, method: 'POST', body: params, contentType: '' },
+      { ...meta, method: 'POST', body: params, formData: true },
     );
 
     return v.parse(mediaAttachmentSchema, response.json);
diff --git a/packages/pl-api/lib/client/oauth.ts b/packages/pl-api/lib/client/oauth.ts
index 568ffee02..a2e051a90 100644
--- a/packages/pl-api/lib/client/oauth.ts
+++ b/packages/pl-api/lib/client/oauth.ts
@@ -19,7 +19,7 @@ const oauth = (client: PlApiBaseClient) => ({
    * @see {@link https://docs.joinmastodon.org/methods/oauth/#authorize}
    */
   authorize: async (params: OauthAuthorizeParams) => {
-    const response = await client.request('/oauth/authorize', { params, contentType: '' });
+    const response = await client.request('/oauth/authorize', { params, formData: true });
 
     return v.parse(v.string(), response.json);
   },