diff --git a/packages/aws-cdk/lib/cli/cli-config.ts b/packages/aws-cdk/lib/cli/cli-config.ts
index 162b6eca5..6a0b33d27 100644
--- a/packages/aws-cdk/lib/cli/cli-config.ts
+++ b/packages/aws-cdk/lib/cli/cli-config.ts
@@ -311,15 +311,15 @@ export async function makeConfig(): Promise<CliConfig> {
               'and falls back to a full deployment if that is not possible.',
           },
           'hotswap-ecs-minimum-healthy-percent': {
-            type: 'string',
+            type: 'number',
             desc: 'Lower limit on the number of your service\'s tasks that must remain in the RUNNING state during a deployment, as a percentage of the desiredCount',
           },
           'hotswap-ecs-maximum-healthy-percent': {
-            type: 'string',
+            type: 'number',
             desc: 'Upper limit on the number of your service\'s tasks that are allowed in the RUNNING or PENDING state during a deployment, as a percentage of the desiredCount',
           },
           'hotswap-ecs-stabilization-timeout-seconds': {
-            type: 'string',
+            type: 'number',
             desc: 'Number of seconds to wait for a single service to reach stable state, where the desiredCount is equal to the runningCount',
           },
           'logs': {
diff --git a/packages/aws-cdk/lib/cli/cli-type-registry.json b/packages/aws-cdk/lib/cli/cli-type-registry.json
index db494fc7e..d6d787308 100644
--- a/packages/aws-cdk/lib/cli/cli-type-registry.json
+++ b/packages/aws-cdk/lib/cli/cli-type-registry.json
@@ -518,15 +518,15 @@
           "desc": "Attempts to perform a 'hotswap' deployment, which skips CloudFormation and updates the resources directly, and falls back to a full deployment if that is not possible. Do not use this in production environments"
         },
         "hotswap-ecs-minimum-healthy-percent": {
-          "type": "string",
+          "type": "number",
           "desc": "Lower limit on the number of your service's tasks that must remain in the RUNNING state during a deployment, as a percentage of the desiredCount"
         },
         "hotswap-ecs-maximum-healthy-percent": {
-          "type": "string",
+          "type": "number",
           "desc": "Upper limit on the number of your service's tasks that are allowed in the RUNNING or PENDING state during a deployment, as a percentage of the desiredCount"
         },
         "hotswap-ecs-stabilization-timeout-seconds": {
-          "type": "string",
+          "type": "number",
           "desc": "Number of seconds to wait for a single service to reach stable state, where the desiredCount is equal to the runningCount"
         },
         "watch": {
diff --git a/packages/aws-cdk/lib/cli/parse-command-line-arguments.ts b/packages/aws-cdk/lib/cli/parse-command-line-arguments.ts
index 91c73b50f..c0d01a33e 100644
--- a/packages/aws-cdk/lib/cli/parse-command-line-arguments.ts
+++ b/packages/aws-cdk/lib/cli/parse-command-line-arguments.ts
@@ -550,17 +550,17 @@ export function parseCommandLineArguments(args: Array<string>): any {
         })
         .option('hotswap-ecs-minimum-healthy-percent', {
           default: undefined,
-          type: 'string',
+          type: 'number',
           desc: "Lower limit on the number of your service's tasks that must remain in the RUNNING state during a deployment, as a percentage of the desiredCount",
         })
         .option('hotswap-ecs-maximum-healthy-percent', {
           default: undefined,
-          type: 'string',
+          type: 'number',
           desc: "Upper limit on the number of your service's tasks that are allowed in the RUNNING or PENDING state during a deployment, as a percentage of the desiredCount",
         })
         .option('hotswap-ecs-stabilization-timeout-seconds', {
           default: undefined,
-          type: 'string',
+          type: 'number',
           desc: 'Number of seconds to wait for a single service to reach stable state, where the desiredCount is equal to the runningCount',
         })
         .option('watch', {
@@ -729,17 +729,17 @@ export function parseCommandLineArguments(args: Array<string>): any {
         })
         .option('hotswap-ecs-minimum-healthy-percent', {
           default: undefined,
-          type: 'string',
+          type: 'number',
           desc: "Lower limit on the number of your service's tasks that must remain in the RUNNING state during a deployment, as a percentage of the desiredCount",
         })
         .option('hotswap-ecs-maximum-healthy-percent', {
           default: undefined,
-          type: 'string',
+          type: 'number',
           desc: "Upper limit on the number of your service's tasks that are allowed in the RUNNING or PENDING state during a deployment, as a percentage of the desiredCount",
         })
         .option('hotswap-ecs-stabilization-timeout-seconds', {
           default: undefined,
-          type: 'string',
+          type: 'number',
           desc: 'Number of seconds to wait for a single service to reach stable state, where the desiredCount is equal to the runningCount',
         })
         .option('logs', {