diff --git a/odpf/optimus/core/v1beta1/runtime.proto b/odpf/optimus/core/v1beta1/runtime.proto
index 5461b3b9..23c35726 100644
--- a/odpf/optimus/core/v1beta1/runtime.proto
+++ b/odpf/optimus/core/v1beta1/runtime.proto
@@ -124,6 +124,13 @@ service RuntimeService {
         };
     }
 
+    // DeleteSecret deletes a secret for a project
+    rpc DeleteSecret(DeleteSecretRequest) returns (DeleteSecretResponse) {
+        option (google.api.http) = {
+            delete: "/v1beta1/project/{project_name}/secret/{secret_name}"
+        };
+    }
+
     // ListProjects returns list of registered projects and configurations
     rpc ListProjects(ListProjectsRequest) returns (ListProjectsResponse) {
         option (google.api.http) = {
@@ -604,6 +611,14 @@ message ListSecretsResponse {
     repeated Secret secrets = 1;
 }
 
+message DeleteSecretRequest {
+    string project_name = 1;
+    string secret_name = 2;
+    string namespace_name = 3;
+}
+
+message DeleteSecretResponse {}
+
 message ListProjectsRequest {}
 
 message ListProjectsResponse {