diff --git a/packages/google-cloud-vision/protos/google/cloud/vision/v1/image_annotator.proto b/packages/google-cloud-vision/protos/google/cloud/vision/v1/image_annotator.proto
index ad9087213ac..3375345e2d1 100644
--- a/packages/google-cloud-vision/protos/google/cloud/vision/v1/image_annotator.proto
+++ b/packages/google-cloud-vision/protos/google/cloud/vision/v1/image_annotator.proto
@@ -824,8 +824,8 @@ message InputConfig {
   // not work for AsyncBatchAnnotateFiles requests.
   bytes content = 3;
 
-  // The type of the file. Currently only "application/pdf" and "image/tiff"
-  // are supported. Wildcards are not supported.
+  // The type of the file. Currently only "application/pdf", "image/tiff" and
+  // "image/gif" are supported. Wildcards are not supported.
   string mime_type = 2;
 }
 
diff --git a/packages/google-cloud-vision/src/v1/doc/google/cloud/vision/v1/doc_image_annotator.js b/packages/google-cloud-vision/src/v1/doc/google/cloud/vision/v1/doc_image_annotator.js
index bac94aee7f8..f6265ac901f 100644
--- a/packages/google-cloud-vision/src/v1/doc/google/cloud/vision/v1/doc_image_annotator.js
+++ b/packages/google-cloud-vision/src/v1/doc/google/cloud/vision/v1/doc_image_annotator.js
@@ -1247,8 +1247,8 @@ const AsyncBatchAnnotateFilesResponse = {
  *   not work for AsyncBatchAnnotateFiles requests.
  *
  * @property {string} mimeType
- *   The type of the file. Currently only "application/pdf" and "image/tiff"
- *   are supported. Wildcards are not supported.
+ *   The type of the file. Currently only "application/pdf", "image/tiff" and
+ *   "image/gif" are supported. Wildcards are not supported.
  *
  * @typedef InputConfig
  * @memberof google.cloud.vision.v1
diff --git a/packages/google-cloud-vision/synth.metadata b/packages/google-cloud-vision/synth.metadata
index c6416fdec44..7e6b4a4878e 100644
--- a/packages/google-cloud-vision/synth.metadata
+++ b/packages/google-cloud-vision/synth.metadata
@@ -1,5 +1,5 @@
 {
-  "updateTime": "2019-05-10T12:19:50.450734Z",
+  "updateTime": "2019-05-11T11:27:59.720471Z",
   "sources": [
     {
       "generator": {
@@ -12,8 +12,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "07883be5bf3c3233095e99d8e92b8094f5d7084a",
-        "internalRef": "247530843"
+        "sha": "32b08107fa1710f46287c17d5bb2016e443ed3ba",
+        "internalRef": "247684466"
       }
     },
     {