diff --git a/packages/@aws-cdk/cfnspec/spec-source/000_sam.spec_DeploymentPreference_patch.json b/packages/@aws-cdk/cfnspec/spec-source/000_sam.spec_DeploymentPreference_patch.json
new file mode 100644
index 0000000000000..7d3e25840d14a
--- /dev/null
+++ b/packages/@aws-cdk/cfnspec/spec-source/000_sam.spec_DeploymentPreference_patch.json
@@ -0,0 +1,57 @@
+{
+    "PropertyTypes": {
+        "AWS::Serverless::Function.DeploymentPreference": {
+            "Documentation": "https://github.com/awslabs/serverless-application-model/blob/master/docs/safe_lambda_deployments.rst",
+            "Properties": {
+                "Enabled": {
+                    "Documentation": "https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#deploymentpreference-object",
+                    "PrimitiveType": "Boolean",
+                    "Required": true,
+                    "UpdateType": "Immutable"
+                },
+                "Type": {
+                    "Documentation": "https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#deploymentpreference-object",
+                    "Required": true,
+                    "Types": [
+                      "AllAtOnce",
+                      "Canary10Percent5Minutes",
+                      "Canary10Percent10Minutes",
+                      "Canary10Percent15Minutes",
+                      "Canary10Percent30Minutes",
+                      "Linear10PercentEvery1Minute",
+                      "Linear10PercentEvery2Minutes",
+                      "Linear10PercentEvery3Minutes",
+                      "Linear10PercentEvery10Minutes"
+                    ],
+                    "UpdateType": "Immutable"
+                },
+                "Alarms": {
+                    "Documentation": "https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#deploymentpreference-object",
+                    "PrimitiveItemType": "String",
+                    "Type": "List",
+                    "Required": false,
+                    "UpdateType": "Immutable"
+                },
+                "Hooks": {
+                    "Documentation": "https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#deploymentpreference-object",
+                    "PrimitiveItemType": "String",
+                    "Type": "List",
+                    "Required": false,
+                    "UpdateType": "Immutable"
+                }
+            }
+        }
+    },
+    "ResourceTypes": {
+        "AWS::Serverless::Function": {
+            "Properties": {
+                "DeploymentPreference": {
+                    "Documentation": "https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#deploymentpreference-object",
+                    "Type": "DeploymentPreference",
+                    "Required": false,
+                    "UpdateType": "Immutable"
+                }
+            }
+        }
+    }
+}