diff --git a/.github/workflows/integration_test.yml b/.github/workflows/integration_test.yml
index ea5b93f7..29763320 100644
--- a/.github/workflows/integration_test.yml
+++ b/.github/workflows/integration_test.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.9', '3.10']
+        python-version: ['3.10', '3.11']
     steps:
       - name: Checkout source
         uses: actions/checkout@v3
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 092c7fe2..7610d565 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,7 +11,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v3
         with:
-          python-version: '3.10'
+          python-version: '3.11'
 
       - name: Install pip
         run: |
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f659a9be..8766933e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.9', '3.10']
+        python-version: ['3.10', '3.11']
     steps:
       - name: Checkout source
         uses: actions/checkout@v3
diff --git a/aws/logs_monitoring/README.md b/aws/logs_monitoring/README.md
index ee0a841c..e85ed97e 100644
--- a/aws/logs_monitoring/README.md
+++ b/aws/logs_monitoring/README.md
@@ -138,6 +138,10 @@ If you can't install the Forwarder using the provided CloudFormation template, y
 
 If you encounter issues upgrading to the latest version, check the Troubleshooting section.
 
+### Upgrade an older version to +3.99.0
+
+Since version 3.99.0 the Lambda function has been updated to require **Python 3.11**. If upgrading an older forwarder installation to +3.99.0 or above, ensure the AWS Lambda function is configured to use Python 3.11
+
 ### Upgrade an older version to +3.98.0
 
 Since version 3.98.0 the Lambda function has been updated to require **Python 3.10**. If upgrading an older forwarder installation to 3.98.0 or above, ensure the AWS Lambda function is configured to use Python 3.10
diff --git a/aws/logs_monitoring/setup.py b/aws/logs_monitoring/setup.py
index b5a23c91..bcee79da 100644
--- a/aws/logs_monitoring/setup.py
+++ b/aws/logs_monitoring/setup.py
@@ -12,11 +12,11 @@
     author="Datadog, Inc.",
     author_email="dev@datadoghq.com",
     classifiers=[
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
     ],
     keywords="datadog aws lambda layer",
-    python_requires=">=3.9, <3.11",
+    python_requires=">=3.10, <3.12",
     install_requires=[
         "datadog-lambda==4.77.0",
         "requests-futures==1.0.0",
diff --git a/aws/logs_monitoring/template.yaml b/aws/logs_monitoring/template.yaml
index c47d66d2..6d08fd01 100644
--- a/aws/logs_monitoring/template.yaml
+++ b/aws/logs_monitoring/template.yaml
@@ -478,7 +478,7 @@ Resources:
 
       MemorySize:
         Ref: MemorySize
-      Runtime: python3.10
+      Runtime: python3.11
       Timeout:
         Ref: Timeout
       Tags:
@@ -876,7 +876,7 @@ Resources:
     Properties:
       Description: Copies Datadog Forwarder zip to the destination S3 bucket
       Handler: index.handler
-      Runtime: python3.10
+      Runtime: python3.11
       Timeout: 300
       Code:
         ZipFile: |
diff --git a/aws/logs_monitoring/tools/build_bundle.sh b/aws/logs_monitoring/tools/build_bundle.sh
index 5ab1f395..aff9eb19 100755
--- a/aws/logs_monitoring/tools/build_bundle.sh
+++ b/aws/logs_monitoring/tools/build_bundle.sh
@@ -22,7 +22,7 @@ else
     VERSION=$1
 fi
 
-PYTHON_VERSION="${PYTHON_VERSION:-3.10}"
+PYTHON_VERSION="${PYTHON_VERSION:-3.11}"
 FORWARDER_PREFIX="aws-dd-forwarder"
 FORWARDER_DIR="../.forwarder"
 
diff --git a/aws/logs_monitoring/tools/integration_tests/cache_test_lambda/serverless.yml b/aws/logs_monitoring/tools/integration_tests/cache_test_lambda/serverless.yml
index 8d9390d4..c065ba37 100644
--- a/aws/logs_monitoring/tools/integration_tests/cache_test_lambda/serverless.yml
+++ b/aws/logs_monitoring/tools/integration_tests/cache_test_lambda/serverless.yml
@@ -1,7 +1,7 @@
 service: integration-tests
 provider:
   name: aws
-  runtime: python3.10
+  runtime: python3.11
 
 functions:
   cache_test_lambda:
diff --git a/aws/logs_monitoring/tools/integration_tests/integration_tests.sh b/aws/logs_monitoring/tools/integration_tests/integration_tests.sh
index 0c845411..a6ad5e08 100755
--- a/aws/logs_monitoring/tools/integration_tests/integration_tests.sh
+++ b/aws/logs_monitoring/tools/integration_tests/integration_tests.sh
@@ -7,8 +7,8 @@
 
 set -e
 
-PYTHON_VERSION="python3.10"
-PYTHON_IMAGE="python:3.10"
+PYTHON_VERSION="python3.11"
+PYTHON_IMAGE="python:3.11"
 SKIP_FORWARDER_BUILD=false
 UPDATE_SNAPSHOTS=false
 LOG_LEVEL=info
@@ -80,8 +80,8 @@ do
 	esac
 done
 
-if [ $PYTHON_VERSION != "python3.9" ] && [ $PYTHON_VERSION != "python3.10" ]; then
-    echo "Must use either Python 3.9 or 3.10"
+if [ $PYTHON_VERSION != "python3.10" ] && [ $PYTHON_VERSION != "python3.11" ]; then
+    echo "Must use either Python 3.10 or 3.11"
     exit 1
 fi
 
diff --git a/aws/logs_monitoring/tools/publish_layers.sh b/aws/logs_monitoring/tools/publish_layers.sh
index 79ebf1d0..8e8c68ea 100755
--- a/aws/logs_monitoring/tools/publish_layers.sh
+++ b/aws/logs_monitoring/tools/publish_layers.sh
@@ -13,7 +13,7 @@ set -e
 # Makes sure any subprocesses will be terminated with this process
 trap "pkill -P $$; exit 1;" INT
 
-PYTHON_VERSIONS_FOR_AWS_CLI=("python3.10")
+PYTHON_VERSIONS_FOR_AWS_CLI=("python3.11")
 LAYER_PATHS=(".forwarder/aws-dd-forwarder-${FORWARDER_VERSION}-layer.zip")
 AVAILABLE_LAYERS=("Datadog-Forwarder")
 AVAILABLE_REGIONS=$(aws ec2 describe-regions | jq -r '.[] | .[] | .RegionName')