diff --git a/lexicons/app/bsky/embed/defs.json b/lexicons/app/bsky/embed/defs.json
index 57ffc03a679..836d5de7d54 100644
--- a/lexicons/app/bsky/embed/defs.json
+++ b/lexicons/app/bsky/embed/defs.json
@@ -10,6 +10,16 @@
         "width": { "type": "integer", "minimum": 1 },
         "height": { "type": "integer", "minimum": 1 }
       }
+    },
+    "videoPresentation": {
+      "type": "object",
+      "description": "Indicates that this video should be presented as a normal video - i.e. with sound, a progress bar, etc.",
+      "properties": {}
+    },
+    "gifPresentation": {
+      "type": "object",
+      "description": "Indicates that this video should be presented as a GIF - i.e. with no sound, looping, etc.",
+      "properties": {}
     }
   }
 }
diff --git a/lexicons/app/bsky/embed/video.json b/lexicons/app/bsky/embed/video.json
index da58ded8bb4..d43bf0525ef 100644
--- a/lexicons/app/bsky/embed/video.json
+++ b/lexicons/app/bsky/embed/video.json
@@ -26,6 +26,11 @@
         "aspectRatio": {
           "type": "ref",
           "ref": "app.bsky.embed.defs#aspectRatio"
+        },
+        "presentation": {
+          "type": "union",
+          "description": "The video's presentation type. If not provided, it will assumed to be #videoPresentation.",
+          "refs": ["#videoPresentation", "#gifPresentation"]
         }
       }
     },
@@ -59,6 +64,10 @@
         "aspectRatio": {
           "type": "ref",
           "ref": "app.bsky.embed.defs#aspectRatio"
+        },
+        "presentation": {
+          "type": "union",
+          "refs": ["#videoPresentation", "#gifPresentation"]
         }
       }
     }