diff --git a/infrastructure/cloudformation/dt/iam.yaml b/infrastructure/cloudformation/dt/iam.yaml
index d89239c..6d90e46 100644
--- a/infrastructure/cloudformation/dt/iam.yaml
+++ b/infrastructure/cloudformation/dt/iam.yaml
@@ -33,6 +33,19 @@ Resources:
                   - logs:CreateLogStream
                   - logs:PutLogEvents
                 Resource: "*"
+        - PolicyName: AttachToVpc
+          PolicyDocument:
+            Version: 2012-10-17
+            Statement:
+              - Effect: Allow
+                Action:
+                  - ec2:CreateNetworkInterface
+                  - ec2:DescribeNetworkInterfaces
+                  - ec2:DeleteNetworkInterface
+                  - ec2:DescribeSecurityGroups
+                  - ec2:DescribeSubnets
+                  - ec2:DescribeVpcs
+                Resource: "*"
 
 Outputs:
   DefaultRole: