diff --git a/.changes/57d333b1-559b-4635-9a04-d78565be34b9.json b/.changes/57d333b1-559b-4635-9a04-d78565be34b9.json
new file mode 100644
index 00000000000..2caec3672d5
--- /dev/null
+++ b/.changes/57d333b1-559b-4635-9a04-d78565be34b9.json
@@ -0,0 +1,8 @@
+{
+    "id": "57d333b1-559b-4635-9a04-d78565be34b9",
+    "type": "bugfix",
+    "description": "Bump **smithy-kotlin** version to correct S3 presigning issues with custom endpoint ports",
+    "issues": [
+        "awslabs/aws-sdk-kotlin#1177"
+    ]
+}
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 0ff91325cbd..c1f5fd87f66 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -9,8 +9,8 @@ coroutines-version = "1.7.3"
 atomicfu-version = "0.23.1"
 
 # smithy-kotlin codegen and runtime are versioned separately
-smithy-kotlin-runtime-version = "1.0.8"
-smithy-kotlin-codegen-version = "0.30.9"
+smithy-kotlin-runtime-version = "1.0.9"
+smithy-kotlin-codegen-version = "0.30.10"
 
 # codegen
 smithy-version = "1.42.0"