diff --git a/.changes/1.18.9.json b/.changes/1.18.9.json
new file mode 100644
index 0000000000..7ef771243e
--- /dev/null
+++ b/.changes/1.18.9.json
@@ -0,0 +1,12 @@
+[
+  {
+    "category": "``sso-admin``",
+    "description": "[``botocore``] Documentation updates for arn:aws:trebuchet:::service:v1:03a2216d-1cda-4696-9ece-1387cb6f6952",
+    "type": "api-change"
+  },
+  {
+    "category": "``cloudformation``",
+    "description": "[``botocore``] SDK update to support Importing existing Stacks to new/existing Self Managed StackSet - Stack Import feature.",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2a3fbb00a0..6ade020086 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,13 @@
 CHANGELOG
 =========
 
+1.18.9
+======
+
+* api-change:``sso-admin``: [``botocore``] Documentation updates for arn:aws:trebuchet:::service:v1:03a2216d-1cda-4696-9ece-1387cb6f6952
+* api-change:``cloudformation``: [``botocore``] SDK update to support Importing existing Stacks to new/existing Self Managed StackSet - Stack Import feature.
+
+
 1.18.8
 ======
 
diff --git a/boto3/__init__.py b/boto3/__init__.py
index 06416953c8..1e05f2706b 100644
--- a/boto3/__init__.py
+++ b/boto3/__init__.py
@@ -18,7 +18,7 @@
 
 
 __author__ = 'Amazon Web Services'
-__version__ = '1.18.8'
+__version__ = '1.18.9'
 
 
 # The default Boto3 session; autoloaded when needed.
diff --git a/setup.cfg b/setup.cfg
index 77ee9c68cb..3549c9acde 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,6 +3,6 @@ universal = 0
 
 [metadata]
 requires_dist =
-    botocore>=1.21.8,<1.22.0
+    botocore>=1.21.9,<1.22.0
     jmespath>=0.7.1,<1.0.0
     s3transfer>=0.5.0,<0.6.0
diff --git a/setup.py b/setup.py
index 9a1a3572f8..91735c8252 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 
 requires = [
-    'botocore>=1.21.8,<1.22.0',
+    'botocore>=1.21.9,<1.22.0',
     'jmespath>=0.7.1,<1.0.0',
     's3transfer>=0.5.0,<0.6.0'
 ]