diff --git a/.changes/1.21.18.json b/.changes/1.21.18.json
new file mode 100644
index 0000000000..fdbaea0497
--- /dev/null
+++ b/.changes/1.21.18.json
@@ -0,0 +1,27 @@
+[
+  {
+    "category": "``outposts``",
+    "description": "[``botocore``] This release adds address filters for listSites",
+    "type": "api-change"
+  },
+  {
+    "category": "``lambda``",
+    "description": "[``botocore``] Adds PrincipalOrgID support to AddPermission API. Customers can use it to manage permissions to lambda functions at AWS Organizations level.",
+    "type": "api-change"
+  },
+  {
+    "category": "``secretsmanager``",
+    "description": "[``botocore``] Documentation updates for Secrets Manager.",
+    "type": "api-change"
+  },
+  {
+    "category": "``connect``",
+    "description": "[``botocore``] This release adds support for enabling Rich Messaging when starting a new chat session via the StartChatContact API. Rich Messaging enables the following formatting options: bold, italics, hyperlinks, bulleted lists, and numbered lists.",
+    "type": "api-change"
+  },
+  {
+    "category": "``chime``",
+    "description": "[``botocore``] Chime VoiceConnector Logging APIs will now support MediaMetricLogs. Also CreateMeetingDialOut now returns AccessDeniedException.",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/.changes/next-release/api-change-chime-39229.json b/.changes/next-release/api-change-chime-39229.json
deleted file mode 100644
index 25ac3742b4..0000000000
--- a/.changes/next-release/api-change-chime-39229.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``chime``",
-  "description": "[``botocore``] Chime VoiceConnector Logging APIs will now support MediaMetricLogs. Also CreateMeetingDialOut now returns AccessDeniedException."
-}
diff --git a/.changes/next-release/api-change-connect-42320.json b/.changes/next-release/api-change-connect-42320.json
deleted file mode 100644
index 10e3c36be9..0000000000
--- a/.changes/next-release/api-change-connect-42320.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``connect``",
-  "description": "[``botocore``] This release adds support for enabling Rich Messaging when starting a new chat session via the StartChatContact API. Rich Messaging enables the following formatting options: bold, italics, hyperlinks, bulleted lists, and numbered lists."
-}
diff --git a/.changes/next-release/api-change-lambda-43726.json b/.changes/next-release/api-change-lambda-43726.json
deleted file mode 100644
index 1ba3e08564..0000000000
--- a/.changes/next-release/api-change-lambda-43726.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``lambda``",
-  "description": "[``botocore``] Adds PrincipalOrgID support to AddPermission API. Customers can use it to manage permissions to lambda functions at AWS Organizations level."
-}
diff --git a/.changes/next-release/api-change-outposts-47169.json b/.changes/next-release/api-change-outposts-47169.json
deleted file mode 100644
index 53945bf0b3..0000000000
--- a/.changes/next-release/api-change-outposts-47169.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``outposts``",
-  "description": "[``botocore``] This release adds address filters for listSites"
-}
diff --git a/.changes/next-release/api-change-secretsmanager-25676.json b/.changes/next-release/api-change-secretsmanager-25676.json
deleted file mode 100644
index f2f6d5230b..0000000000
--- a/.changes/next-release/api-change-secretsmanager-25676.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "type": "api-change",
-  "category": "``secretsmanager``",
-  "description": "[``botocore``] Documentation updates for Secrets Manager."
-}
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 20ebd8afb8..4e634e1116 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,16 @@
 CHANGELOG
 =========
 
+1.21.18
+=======
+
+* api-change:``outposts``: [``botocore``] This release adds address filters for listSites
+* api-change:``lambda``: [``botocore``] Adds PrincipalOrgID support to AddPermission API. Customers can use it to manage permissions to lambda functions at AWS Organizations level.
+* api-change:``secretsmanager``: [``botocore``] Documentation updates for Secrets Manager.
+* api-change:``connect``: [``botocore``] This release adds support for enabling Rich Messaging when starting a new chat session via the StartChatContact API. Rich Messaging enables the following formatting options: bold, italics, hyperlinks, bulleted lists, and numbered lists.
+* api-change:``chime``: [``botocore``] Chime VoiceConnector Logging APIs will now support MediaMetricLogs. Also CreateMeetingDialOut now returns AccessDeniedException.
+
+
 1.21.17
 =======
 
diff --git a/boto3/__init__.py b/boto3/__init__.py
index 9fc5003347..c0963770e8 100644
--- a/boto3/__init__.py
+++ b/boto3/__init__.py
@@ -17,7 +17,7 @@
 from boto3.session import Session
 
 __author__ = 'Amazon Web Services'
-__version__ = '1.21.17'
+__version__ = '1.21.18'
 
 
 # The default Boto3 session; autoloaded when needed.
diff --git a/setup.cfg b/setup.cfg
index ab3015b93b..d9c62127ed 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ universal = 0
 
 [metadata]
 requires_dist =
-    botocore>=1.24.17,<1.25.0
+    botocore>=1.24.18,<1.25.0
     jmespath>=0.7.1,<1.0.0
     s3transfer>=0.5.0,<0.6.0
 
diff --git a/setup.py b/setup.py
index f5f114a7e4..6915e6d883 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 
 
 requires = [
-    'botocore>=1.24.17,<1.25.0',
+    'botocore>=1.24.18,<1.25.0',
     'jmespath>=0.7.1,<1.0.0',
     's3transfer>=0.5.0,<0.6.0',
 ]