diff --git a/.changes/1.28.20.json b/.changes/1.28.20.json
new file mode 100644
index 0000000000..560ae783af
--- /dev/null
+++ b/.changes/1.28.20.json
@@ -0,0 +1,27 @@
+[
+  {
+    "category": "``acm-pca``",
+    "description": "[``botocore``] Documentation correction for AWS Private CA",
+    "type": "api-change"
+  },
+  {
+    "category": "``connect``",
+    "description": "[``botocore``] Added a new API UpdateRoutingProfileAgentAvailabilityTimer to update agent availability timer of a routing profile.",
+    "type": "api-change"
+  },
+  {
+    "category": "``datasync``",
+    "description": "[``botocore``] Display cloud storage used capacity at a cluster level.",
+    "type": "api-change"
+  },
+  {
+    "category": "``ecs``",
+    "description": "[``botocore``] This is a documentation update to address various tickets.",
+    "type": "api-change"
+  },
+  {
+    "category": "``sagemaker``",
+    "description": "[``botocore``] Including DataCaptureConfig key in the Amazon Sagemaker Search's transform job object",
+    "type": "api-change"
+  }
+]
\ No newline at end of file
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 112220131c..ebf6e09362 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,16 @@
 CHANGELOG
 =========
 
+1.28.20
+=======
+
+* api-change:``acm-pca``: [``botocore``] Documentation correction for AWS Private CA
+* api-change:``connect``: [``botocore``] Added a new API UpdateRoutingProfileAgentAvailabilityTimer to update agent availability timer of a routing profile.
+* api-change:``datasync``: [``botocore``] Display cloud storage used capacity at a cluster level.
+* api-change:``ecs``: [``botocore``] This is a documentation update to address various tickets.
+* api-change:``sagemaker``: [``botocore``] Including DataCaptureConfig key in the Amazon Sagemaker Search's transform job object
+
+
 1.28.19
 =======
 
diff --git a/boto3/__init__.py b/boto3/__init__.py
index 2e44e8f231..7d71df842d 100644
--- a/boto3/__init__.py
+++ b/boto3/__init__.py
@@ -17,7 +17,7 @@
 from boto3.session import Session
 
 __author__ = 'Amazon Web Services'
-__version__ = '1.28.19'
+__version__ = '1.28.20'
 
 
 # The default Boto3 session; autoloaded when needed.
diff --git a/setup.cfg b/setup.cfg
index 48696d54a9..bad9387cba 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ universal = 0
 
 [metadata]
 requires_dist =
-    botocore>=1.31.19,<1.32.0
+    botocore>=1.31.20,<1.32.0
     jmespath>=0.7.1,<2.0.0
     s3transfer>=0.6.0,<0.7.0
 
diff --git a/setup.py b/setup.py
index 43c5b74624..c2b72b881c 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 
 
 requires = [
-    'botocore>=1.31.19,<1.32.0',
+    'botocore>=1.31.20,<1.32.0',
     'jmespath>=0.7.1,<2.0.0',
     's3transfer>=0.6.0,<0.7.0',
 ]