diff --git a/manifest.json b/manifest.json
index 6c24e236d..866d01232 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,6 @@
 {
     "variables": {
-        "${LATEST}": "3.351.3"
+        "${LATEST}": "3.351.5"
     },
     "endpoints": "https://raw.githubusercontent.com/aws/aws-sdk-php/${LATEST}/src/data/endpoints.json",
     "services": {
diff --git a/src/Service/Lambda/CHANGELOG.md b/src/Service/Lambda/CHANGELOG.md
index a5b92e49f..53042da2b 100644
--- a/src/Service/Lambda/CHANGELOG.md
+++ b/src/Service/Lambda/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Added
 
 - AWS api-change: Rework regions configuration
+- AWS api-change: remove trailling `/` in `ListFunctions` request
 
 ### Changed
 
diff --git a/src/Service/Lambda/src/Input/ListFunctionsRequest.php b/src/Service/Lambda/src/Input/ListFunctionsRequest.php
index da199a588..cf157733d 100644
--- a/src/Service/Lambda/src/Input/ListFunctionsRequest.php
+++ b/src/Service/Lambda/src/Input/ListFunctionsRequest.php
@@ -126,7 +126,7 @@ public function request(): Request
         }
 
         // Prepare URI
-        $uriString = '/2015-03-31/functions/';
+        $uriString = '/2015-03-31/functions';
 
         // Prepare Body
         $body = '';
diff --git a/src/Service/Lambda/tests/Unit/Input/ListFunctionsRequestTest.php b/src/Service/Lambda/tests/Unit/Input/ListFunctionsRequestTest.php
index ede3a6dcf..ae6d4188e 100644
--- a/src/Service/Lambda/tests/Unit/Input/ListFunctionsRequestTest.php
+++ b/src/Service/Lambda/tests/Unit/Input/ListFunctionsRequestTest.php
@@ -18,7 +18,7 @@ public function testRequest(): void
 
         // see https://docs.aws.amazon.com/lambda/latest/APIReference/API_ListFunctions.html
         $expected = '
-            GET /2015-03-31/functions/?FunctionVersion=ALL&Marker=xxyy&MasterRegion=eu-central-1&MaxItems=1337 HTTP/1.1
+            GET /2015-03-31/functions?FunctionVersion=ALL&Marker=xxyy&MasterRegion=eu-central-1&MaxItems=1337 HTTP/1.1
             Content-type: application/json
             Accept: application/json
                 ';