diff --git a/packages/core/src/resources/Groups.ts b/packages/core/src/resources/Groups.ts
index dd6e920f..ff211739 100644
--- a/packages/core/src/resources/Groups.ts
+++ b/packages/core/src/resources/Groups.ts
@@ -87,6 +87,7 @@ export type AllGroupsOptions = {
   owned?: boolean;
   minAccessLevel?: Exclude<AccessLevel, AccessLevel.ADMIN>;
   topLevelOnly?: boolean;
+  markedForDeletionOn?: string;
 };
 
 export type AllGroupProjectsOptions = {
diff --git a/packages/core/src/resources/Projects.ts b/packages/core/src/resources/Projects.ts
index ee901c8e..4e3936f0 100644
--- a/packages/core/src/resources/Projects.ts
+++ b/packages/core/src/resources/Projects.ts
@@ -232,6 +232,7 @@ export type AllProjectsOptions = {
   withProgrammingLanguage?: string;
   updatedBefore?: string;
   updatedAfter?: string;
+  markedForDeletionOn?: string;
 };
 
 export type CreateProjectOptions = {