diff --git a/aws_lambda_powertools/utilities/parser/models/apigw.py b/aws_lambda_powertools/utilities/parser/models/apigw.py
index 78b40cd2c0..82a3a6188d 100644
--- a/aws_lambda_powertools/utilities/parser/models/apigw.py
+++ b/aws_lambda_powertools/utilities/parser/models/apigw.py
@@ -31,7 +31,9 @@ class APIGatewayEventIdentity(BaseModel):
     cognitoIdentityId: Optional[str]
     cognitoIdentityPoolId: Optional[str]
     principalOrgId: Optional[str]
-    sourceIp: IPvAnyNetwork
+    # see #1562, temp workaround until API Gateway fixes it the Test button payload
+    # removing it will not be considered a regression in the future
+    sourceIp: Union[IPvAnyNetwork, Literal["test-invoke-source-ip"]]
     user: Optional[str]
     userAgent: Optional[str]
     userArn: Optional[str]