diff --git a/manifest.json b/manifest.json
index cb191ff96..bce2ba00a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,6 @@
 {
     "variables": {
-        "${LATEST}": "3.371.4"
+        "${LATEST}": "3.372.1"
     },
     "endpoints": "https://raw.githubusercontent.com/aws/aws-sdk-php/${LATEST}/src/data/endpoints.json",
     "services": {
diff --git a/src/Service/Ses/CHANGELOG.md b/src/Service/Ses/CHANGELOG.md
index f13f5cb9d..b2be3ba46 100644
--- a/src/Service/Ses/CHANGELOG.md
+++ b/src/Service/Ses/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## NOT RELEASED
 
+### Changed
+
+- AWS enhancement: Documentation updates.
+
 ## 1.14.1
 
 ### Changed
diff --git a/src/Service/Ses/src/ValueObject/MessageHeader.php b/src/Service/Ses/src/ValueObject/MessageHeader.php
index 3a4446a5d..5453ed419 100644
--- a/src/Service/Ses/src/ValueObject/MessageHeader.php
+++ b/src/Service/Ses/src/ValueObject/MessageHeader.php
@@ -23,7 +23,8 @@ final class MessageHeader
      * The value of the message header. The message header value has to meet the following criteria:
      *
      * - Can contain any printable ASCII character.
-     * - Can contain no more than 870 characters.
+     * - Can contain no more than 995 characters.
+     * - The combined length of the header name and value must not exceed 996 characters.
      *
      * @var string
      */