diff --git a/catalog-rest-service/src/main/resources/json/schema/security/credentials/gcsCredentials.json b/catalog-rest-service/src/main/resources/json/schema/security/credentials/gcsCredentials.json
index 9b5a9ce9075..0500bda10f3 100644
--- a/catalog-rest-service/src/main/resources/json/schema/security/credentials/gcsCredentials.json
+++ b/catalog-rest-service/src/main/resources/json/schema/security/credentials/gcsCredentials.json
@@ -70,16 +70,7 @@
           "format": "uri"
         }
       },
-      "additionalProperties": false,
-      "required": [
-        "type",
-        "projectId",
-        "privateKeyId",
-        "privateKey",
-        "clientEmail",
-        "clientId",
-        "clientX509CertUrl"
-      ]
+      "additionalProperties": false
     },
     "GCSCredentialsPath": {
       "title": "GCS Credentials Path",
diff --git a/openmetadata-docs/content/openmetadata/connectors/database/bigquery/airflow.md b/openmetadata-docs/content/openmetadata/connectors/database/bigquery/airflow.md
index c9ae3171ff2..1283615131a 100644
--- a/openmetadata-docs/content/openmetadata/connectors/database/bigquery/airflow.md
+++ b/openmetadata-docs/content/openmetadata/connectors/database/bigquery/airflow.md
@@ -204,6 +204,18 @@ credentials:
     - In case you are using Single-Sign-On (SSO) for authentication, add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "sso_login_url"`
     - In case you authenticate with SSO using an external browser popup, then add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "externalbrowser"`
 
+If you want to use [ADC authentication](https://cloud.google.com/docs/authentication#adc) for BigQuery you can just leave
+the GCS credentials empty. This is why they are not marked as required.
+
+```yaml
+...
+  config:
+    type: BigQuery
+    credentials:
+      gcsConfig: {}
+...
+```
+
 #### Source Configuration - Source Config
 
 The `sourceConfig` is defined [here](https://github.com/open-metadata/OpenMetadata/blob/main/catalog-rest-service/src/main/resources/json/schema/metadataIngestion/databaseServiceMetadataPipeline.json):
diff --git a/openmetadata-docs/content/openmetadata/connectors/database/bigquery/cli.md b/openmetadata-docs/content/openmetadata/connectors/database/bigquery/cli.md
index 7857d185bbb..dffefd9d8f1 100644
--- a/openmetadata-docs/content/openmetadata/connectors/database/bigquery/cli.md
+++ b/openmetadata-docs/content/openmetadata/connectors/database/bigquery/cli.md
@@ -204,6 +204,18 @@ credentials:
     - In case you are using Single-Sign-On (SSO) for authentication, add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "sso_login_url"`
     - In case you authenticate with SSO using an external browser popup, then add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "externalbrowser"`
 
+If you want to use [ADC authentication](https://cloud.google.com/docs/authentication#adc) for BigQuery you can just leave
+the GCS credentials empty. This is why they are not marked as required.
+
+```yaml
+...
+  config:
+    type: BigQuery
+    credentials:
+      gcsConfig: {}
+...
+```
+
 #### Source Configuration - Source Config
 
 The `sourceConfig` is defined [here](https://github.com/open-metadata/OpenMetadata/blob/main/catalog-rest-service/src/main/resources/json/schema/metadataIngestion/databaseServiceMetadataPipeline.json):
diff --git a/openmetadata-docs/content/openmetadata/connectors/database/bigquery/index.md b/openmetadata-docs/content/openmetadata/connectors/database/bigquery/index.md
index 6b4b5d4d7ce..2ef312aad28 100644
--- a/openmetadata-docs/content/openmetadata/connectors/database/bigquery/index.md
+++ b/openmetadata-docs/content/openmetadata/connectors/database/bigquery/index.md
@@ -179,6 +179,8 @@ the changes.
   - In case you are using Single-Sign-On (SSO) for authentication, add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "sso_login_url"`
   - In case you authenticate with SSO using an external browser popup, then add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "externalbrowser"`
 
+If you want to use [ADC authentication](https://cloud.google.com/docs/authentication#adc) for BigQuery you can just leave
+the GCS credentials empty. This is why they are not marked as required.
 
 ### 6. Configure Metadata Ingestion