diff --git a/cli/requirements.txt b/cli/requirements.txt
index dce6fedf37..497b68a361 100644
--- a/cli/requirements.txt
+++ b/cli/requirements.txt
@@ -17,7 +17,7 @@ aws_cdk.aws-cloudwatch~=1.164
 aws_cdk.aws-lambda~=1.164
 boto3>=1.16.14
 connexion~=2.13.0
-flask>=2.2.5,<2.3
+flask>=2.2.5,<2.4
 jinja2~=3.0
 jmespath~=0.10
 jsii==1.85.0
diff --git a/cli/setup.py b/cli/setup.py
index 3cd85a95c0..bf1c23a4c8 100644
--- a/cli/setup.py
+++ b/cli/setup.py
@@ -48,7 +48,7 @@ def readme():
     "aws-cdk.aws-cloudformation~=" + CDK_VERSION,
     "werkzeug~=2.0",
     "connexion~=2.13.0",
-    "flask>=2.2.5,<2.3",
+    "flask>=2.2.5,<2.4",
     "jmespath~=0.10",
     "jsii==1.85.0",
 ]