diff --git a/openapi.yaml b/openapi.yaml
index 030c0ff..d7cc9cd 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -3377,6 +3377,7 @@ components:
                     $ref: "#/components/schemas/ProjectContactResponse"
                 notepad:
                     type: string
+                    nullable: true
                     description: "Notes or description of the project"
                     example: "Be sure to let the client know when the work is finished"
                 created_at:
@@ -3431,10 +3432,7 @@ components:
                         ]
                     example: "processed"
                 coordinates:
-                    type: array
-                    description: "The coordinates where the Photo was captured"
-                    items:
-                        $ref: "#/components/schemas/Coordinate"
+                    $ref: "#/components/schemas/Coordinate"
                 uris:
                     type: array
                     description: "A list of URIs for the different size variants of the photo."
@@ -3451,6 +3449,7 @@ components:
                     type: string
                     description: "The MD5 hash of the photo"
                     example: "00ab337b7399151e5d4aa3bd4226e8dd"
+                    nullable: true
                 description:
                     type: string
                     description: "A description of the photo"
@@ -3461,6 +3460,7 @@ components:
                     example: false
                 photo_url:
                     type: string
+                    format: uri
                     description: "The link to the photo in the web app"
                     example: "https://app.companycam.com/photos/8675309"
                 captured_at:
@@ -3602,8 +3602,10 @@ components:
                     type: string
                 uri:
                     type: string
+                    format: uri
                 url:
                     type: string
+                    format: uri
             example:
                 type: "original"
                 uri: "https://static.companycam.com/VuS0rPvrnNA1490797262.jpg"
@@ -3888,13 +3890,13 @@ components:
             type: object
             required:
                 - type
-                - relation_id
             properties:
                 type:
                     type: string
                     example: "JobNimbus"
                 relation_id:
                     type: string
+                    nullable: true
                     example: "123"
         Comment:
             type: object
@@ -3997,6 +3999,7 @@ components:
                     example: 1621857746
         ProjectContactResponse:
             type: object
+            nullable: true
             properties:
                 id:
                     type: string
@@ -4012,10 +4015,12 @@ components:
                     example: "Joe Smith"
                 email:
                     type: string
+                    nullable: true
                     description: "The email of the contact"
                     example: "joe.smith@companycam.com"
                 phone_number:
                     type: string
+                    nullable: true
                     description: "The phone of the contact"
                     example: "402-555-1212"
                 created_at:
@@ -4047,10 +4052,12 @@ components:
                     example: "Joe Smith"
                 email:
                     type: string
+                    nullable: true
                     description: "The email of the contact"
                     example: "joe.smith@companycam.com"
                 phone_number:
                     type: string
+                    nullable: true
                     description: "The phone of the contact"
                     example: "402-555-1212"
         ProjectNotepad: