diff --git a/CHANGELOG.md b/CHANGELOG.md
index 705202109c0..4d0ac5778e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Release v1.14.3 (2018-06-08)
+===
+
+### Service Client Updates
+* `service/mediatailor`: Updates service API
+
 Release v1.14.2 (2018-06-07)
 ===
 
diff --git a/aws/version.go b/aws/version.go
index 07d72330a4a..8b0432856e2 100644
--- a/aws/version.go
+++ b/aws/version.go
@@ -5,4 +5,4 @@ package aws
 const SDKName = "aws-sdk-go"
 
 // SDKVersion is the version of this SDK
-const SDKVersion = "1.14.2"
+const SDKVersion = "1.14.3"
diff --git a/models/apis/mediatailor/2018-04-23/api-2.json b/models/apis/mediatailor/2018-04-23/api-2.json
index 2e8c18f424a..757ba1355a3 100644
--- a/models/apis/mediatailor/2018-04-23/api-2.json
+++ b/models/apis/mediatailor/2018-04-23/api-2.json
@@ -16,7 +16,7 @@
       "name" : "DeletePlaybackConfiguration",
       "http" : {
         "method" : "DELETE",
-        "requestUri" : "/prod/playbackConfiguration/{Name}",
+        "requestUri" : "/playbackConfiguration/{Name}",
         "responseCode" : 204
       },
       "input" : {
@@ -28,7 +28,7 @@
       "name" : "GetPlaybackConfiguration",
       "http" : {
         "method" : "GET",
-        "requestUri" : "/prod/playbackConfiguration/{Name}",
+        "requestUri" : "/playbackConfiguration/{Name}",
         "responseCode" : 200
       },
       "input" : {
@@ -43,7 +43,7 @@
       "name" : "ListPlaybackConfigurations",
       "http" : {
         "method" : "GET",
-        "requestUri" : "/prod/playbackConfigurations",
+        "requestUri" : "/playbackConfigurations",
         "responseCode" : 200
       },
       "input" : {
@@ -58,7 +58,7 @@
       "name" : "PutPlaybackConfiguration",
       "http" : {
         "method" : "PUT",
-        "requestUri" : "/prod/playbackConfiguration",
+        "requestUri" : "/playbackConfiguration",
         "responseCode" : 200
       },
       "input" : {
diff --git a/service/mediatailor/api.go b/service/mediatailor/api.go
index ba886df4c38..7f0cc57f07f 100644
--- a/service/mediatailor/api.go
+++ b/service/mediatailor/api.go
@@ -40,7 +40,7 @@ func (c *MediaTailor) DeletePlaybackConfigurationRequest(input *DeletePlaybackCo
 	op := &request.Operation{
 		Name:       opDeletePlaybackConfiguration,
 		HTTPMethod: "DELETE",
-		HTTPPath:   "/prod/playbackConfiguration/{Name}",
+		HTTPPath:   "/playbackConfiguration/{Name}",
 	}
 
 	if input == nil {
@@ -116,7 +116,7 @@ func (c *MediaTailor) GetPlaybackConfigurationRequest(input *GetPlaybackConfigur
 	op := &request.Operation{
 		Name:       opGetPlaybackConfiguration,
 		HTTPMethod: "GET",
-		HTTPPath:   "/prod/playbackConfiguration/{Name}",
+		HTTPPath:   "/playbackConfiguration/{Name}",
 	}
 
 	if input == nil {
@@ -190,7 +190,7 @@ func (c *MediaTailor) ListPlaybackConfigurationsRequest(input *ListPlaybackConfi
 	op := &request.Operation{
 		Name:       opListPlaybackConfigurations,
 		HTTPMethod: "GET",
-		HTTPPath:   "/prod/playbackConfigurations",
+		HTTPPath:   "/playbackConfigurations",
 	}
 
 	if input == nil {
@@ -268,7 +268,7 @@ func (c *MediaTailor) PutPlaybackConfigurationRequest(input *PutPlaybackConfigur
 	op := &request.Operation{
 		Name:       opPutPlaybackConfiguration,
 		HTTPMethod: "PUT",
-		HTTPPath:   "/prod/playbackConfiguration",
+		HTTPPath:   "/playbackConfiguration",
 	}
 
 	if input == nil {