diff --git a/packages/app-builder/src/models/node-evaluation.ts b/packages/app-builder/src/models/node-evaluation.ts
index ed28cd1d..29a3b339 100644
--- a/packages/app-builder/src/models/node-evaluation.ts
+++ b/packages/app-builder/src/models/node-evaluation.ts
@@ -16,7 +16,7 @@ export type ReturnValue =
       isOmitted: true;
     };
 
-export type ReturnValueType = 'string' | 'int' | 'float' | 'bool' | 'datetime';
+export type ReturnValueType = 'string' | 'int' | 'float' | 'bool';
 
 export type NonOmittedReturnValue = { value: ConstantType; isOmitted: false };
 
diff --git a/packages/marble-api/openapis/marblecore-api.yaml b/packages/marble-api/openapis/marblecore-api.yaml
index e39b8fc8..84fe657f 100644
--- a/packages/marble-api/openapis/marblecore-api.yaml
+++ b/packages/marble-api/openapis/marblecore-api.yaml
@@ -4840,7 +4840,7 @@ components:
             - $ref: '#/components/schemas/NodeDto'
         expected_return_type:
           type: string
-          enum: ['string', 'int', 'float', 'bool', 'datetime']
+          enum: ['string', 'int', 'float', 'bool']
     ScenarioUpdateInputDto:
       type: object
       properties:
diff --git a/packages/marble-api/src/generated/marblecore-api.ts b/packages/marble-api/src/generated/marblecore-api.ts
index 9a050405..a37d0445 100644
--- a/packages/marble-api/src/generated/marblecore-api.ts
+++ b/packages/marble-api/src/generated/marblecore-api.ts
@@ -364,7 +364,7 @@ export type ScenarioUpdateInputDto = {
 };
 export type ScenarioAstValidateInputDto = {
     node?: NodeDto;
-    expected_return_type?: "string" | "int" | "float" | "bool" | "datetime";
+    expected_return_type?: "string" | "int" | "float" | "bool";
 };
 export type ScenarioIterationDto = {
     id: string;