diff --git a/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=false.json b/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=false.json
index 215fa01821..5bc92ec79a 100644
--- a/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=false.json
+++ b/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=false.json
@@ -63,7 +63,8 @@
   "require_request_uri_registration": true,
   "response_modes_supported": [
     "query",
-    "fragment"
+    "fragment",
+    "form_post"
   ],
   "response_types_supported": [
     "code",
diff --git a/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=true.json b/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=true.json
index 215fa01821..5bc92ec79a 100644
--- a/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=true.json
+++ b/oauth2/.snapshots/TestHandlerWellKnown-hsm_enabled=true.json
@@ -63,7 +63,8 @@
   "require_request_uri_registration": true,
   "response_modes_supported": [
     "query",
-    "fragment"
+    "fragment",
+    "form_post"
   ],
   "response_types_supported": [
     "code",