diff --git a/specs/openapi.json b/specs/openapi.json
index 3fd68dd..3017e4b 100644
--- a/specs/openapi.json
+++ b/specs/openapi.json
@@ -23488,6 +23488,10 @@
             "title": "INSTAGRAM",
             "const": "instagram"
           },
+          {
+            "title": "LETTERBOXD",
+            "const": "letterboxd"
+          },
           {
             "title": "MASTODON",
             "const": "mastodon"
diff --git a/specs/openapi_preview.json b/specs/openapi_preview.json
index 04b1887..eae509e 100644
--- a/specs/openapi_preview.json
+++ b/specs/openapi_preview.json
@@ -23505,6 +23505,10 @@
             "title": "INSTAGRAM",
             "const": "instagram"
           },
+          {
+            "title": "LETTERBOXD",
+            "const": "letterboxd"
+          },
           {
             "title": "MASTODON",
             "const": "mastodon"