diff --git a/clients/client-codestar-connections/src/commands/CreateConnectionCommand.ts b/clients/client-codestar-connections/src/commands/CreateConnectionCommand.ts
index 3c3c941e0e06..61f21a598152 100644
--- a/clients/client-codestar-connections/src/commands/CreateConnectionCommand.ts
+++ b/clients/client-codestar-connections/src/commands/CreateConnectionCommand.ts
@@ -42,7 +42,7 @@ export interface CreateConnectionCommandOutput extends CreateConnectionOutput, _
  * // const { CodeStarConnectionsClient, CreateConnectionCommand } = require("@aws-sdk/client-codestar-connections"); // CommonJS import
  * const client = new CodeStarConnectionsClient(config);
  * const input = { // CreateConnectionInput
- *   ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab",
+ *   ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged",
  *   ConnectionName: "STRING_VALUE", // required
  *   Tags: [ // TagList
  *     { // Tag
diff --git a/clients/client-codestar-connections/src/commands/CreateHostCommand.ts b/clients/client-codestar-connections/src/commands/CreateHostCommand.ts
index e51af75f50df..b9f821b476b8 100644
--- a/clients/client-codestar-connections/src/commands/CreateHostCommand.ts
+++ b/clients/client-codestar-connections/src/commands/CreateHostCommand.ts
@@ -48,7 +48,7 @@ export interface CreateHostCommandOutput extends CreateHostOutput, __MetadataBea
  * const client = new CodeStarConnectionsClient(config);
  * const input = { // CreateHostInput
  *   Name: "STRING_VALUE", // required
- *   ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ *   ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  *   ProviderEndpoint: "STRING_VALUE", // required
  *   VpcConfiguration: { // VpcConfiguration
  *     VpcId: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/CreateRepositoryLinkCommand.ts b/clients/client-codestar-connections/src/commands/CreateRepositoryLinkCommand.ts
index b42a1a775d39..287917c22477 100644
--- a/clients/client-codestar-connections/src/commands/CreateRepositoryLinkCommand.ts
+++ b/clients/client-codestar-connections/src/commands/CreateRepositoryLinkCommand.ts
@@ -58,7 +58,7 @@ export interface CreateRepositoryLinkCommandOutput extends CreateRepositoryLinkO
  * //     ConnectionArn: "STRING_VALUE", // required
  * //     EncryptionKeyArn: "STRING_VALUE",
  * //     OwnerId: "STRING_VALUE", // required
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //     RepositoryLinkArn: "STRING_VALUE", // required
  * //     RepositoryLinkId: "STRING_VALUE", // required
  * //     RepositoryName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/CreateSyncConfigurationCommand.ts b/clients/client-codestar-connections/src/commands/CreateSyncConfigurationCommand.ts
index 18b416569327..a8389f10b359 100644
--- a/clients/client-codestar-connections/src/commands/CreateSyncConfigurationCommand.ts
+++ b/clients/client-codestar-connections/src/commands/CreateSyncConfigurationCommand.ts
@@ -56,7 +56,7 @@ export interface CreateSyncConfigurationCommandOutput extends CreateSyncConfigur
  * //     Branch: "STRING_VALUE", // required
  * //     ConfigFile: "STRING_VALUE",
  * //     OwnerId: "STRING_VALUE", // required
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //     RepositoryLinkId: "STRING_VALUE", // required
  * //     RepositoryName: "STRING_VALUE", // required
  * //     ResourceName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/GetConnectionCommand.ts b/clients/client-codestar-connections/src/commands/GetConnectionCommand.ts
index bffacd491067..69a73fdc98b8 100644
--- a/clients/client-codestar-connections/src/commands/GetConnectionCommand.ts
+++ b/clients/client-codestar-connections/src/commands/GetConnectionCommand.ts
@@ -48,7 +48,7 @@ export interface GetConnectionCommandOutput extends GetConnectionOutput, __Metad
  * //   Connection: { // Connection
  * //     ConnectionName: "STRING_VALUE",
  * //     ConnectionArn: "STRING_VALUE",
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab",
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged",
  * //     OwnerAccountId: "STRING_VALUE",
  * //     ConnectionStatus: "PENDING" || "AVAILABLE" || "ERROR",
  * //     HostArn: "STRING_VALUE",
diff --git a/clients/client-codestar-connections/src/commands/GetHostCommand.ts b/clients/client-codestar-connections/src/commands/GetHostCommand.ts
index 56b1ba560411..2873496fe3a2 100644
--- a/clients/client-codestar-connections/src/commands/GetHostCommand.ts
+++ b/clients/client-codestar-connections/src/commands/GetHostCommand.ts
@@ -48,7 +48,7 @@ export interface GetHostCommandOutput extends GetHostOutput, __MetadataBearer {}
  * // { // GetHostOutput
  * //   Name: "STRING_VALUE",
  * //   Status: "STRING_VALUE",
- * //   ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab",
+ * //   ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged",
  * //   ProviderEndpoint: "STRING_VALUE",
  * //   VpcConfiguration: { // VpcConfiguration
  * //     VpcId: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/GetRepositoryLinkCommand.ts b/clients/client-codestar-connections/src/commands/GetRepositoryLinkCommand.ts
index bc8c5ea23cb3..41824fc6e273 100644
--- a/clients/client-codestar-connections/src/commands/GetRepositoryLinkCommand.ts
+++ b/clients/client-codestar-connections/src/commands/GetRepositoryLinkCommand.ts
@@ -50,7 +50,7 @@ export interface GetRepositoryLinkCommandOutput extends GetRepositoryLinkOutput,
  * //     ConnectionArn: "STRING_VALUE", // required
  * //     EncryptionKeyArn: "STRING_VALUE",
  * //     OwnerId: "STRING_VALUE", // required
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //     RepositoryLinkArn: "STRING_VALUE", // required
  * //     RepositoryLinkId: "STRING_VALUE", // required
  * //     RepositoryName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/GetResourceSyncStatusCommand.ts b/clients/client-codestar-connections/src/commands/GetResourceSyncStatusCommand.ts
index f670696dcaee..7508fe3507e7 100644
--- a/clients/client-codestar-connections/src/commands/GetResourceSyncStatusCommand.ts
+++ b/clients/client-codestar-connections/src/commands/GetResourceSyncStatusCommand.ts
@@ -52,7 +52,7 @@ export interface GetResourceSyncStatusCommandOutput extends GetResourceSyncStatu
  * //     Directory: "STRING_VALUE", // required
  * //     OwnerId: "STRING_VALUE", // required
  * //     RepositoryName: "STRING_VALUE", // required
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //     Sha: "STRING_VALUE", // required
  * //   },
  * //   LatestSuccessfulSync: { // ResourceSyncAttempt
@@ -69,7 +69,7 @@ export interface GetResourceSyncStatusCommandOutput extends GetResourceSyncStatu
  * //       Directory: "STRING_VALUE", // required
  * //       OwnerId: "STRING_VALUE", // required
  * //       RepositoryName: "STRING_VALUE", // required
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //       Sha: "STRING_VALUE", // required
  * //     },
  * //     StartedAt: new Date("TIMESTAMP"), // required
@@ -79,7 +79,7 @@ export interface GetResourceSyncStatusCommandOutput extends GetResourceSyncStatu
  * //       Directory: "STRING_VALUE", // required
  * //       OwnerId: "STRING_VALUE", // required
  * //       RepositoryName: "STRING_VALUE", // required
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //       Sha: "STRING_VALUE", // required
  * //     },
  * //     Target: "STRING_VALUE", // required
@@ -98,7 +98,7 @@ export interface GetResourceSyncStatusCommandOutput extends GetResourceSyncStatu
  * //       Directory: "STRING_VALUE", // required
  * //       OwnerId: "STRING_VALUE", // required
  * //       RepositoryName: "STRING_VALUE", // required
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //       Sha: "STRING_VALUE", // required
  * //     },
  * //     StartedAt: new Date("TIMESTAMP"), // required
@@ -108,7 +108,7 @@ export interface GetResourceSyncStatusCommandOutput extends GetResourceSyncStatu
  * //       Directory: "STRING_VALUE", // required
  * //       OwnerId: "STRING_VALUE", // required
  * //       RepositoryName: "STRING_VALUE", // required
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //       Sha: "STRING_VALUE", // required
  * //     },
  * //     Target: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/GetSyncConfigurationCommand.ts b/clients/client-codestar-connections/src/commands/GetSyncConfigurationCommand.ts
index 0081ac2219c3..085d460d4169 100644
--- a/clients/client-codestar-connections/src/commands/GetSyncConfigurationCommand.ts
+++ b/clients/client-codestar-connections/src/commands/GetSyncConfigurationCommand.ts
@@ -50,7 +50,7 @@ export interface GetSyncConfigurationCommandOutput extends GetSyncConfigurationO
  * //     Branch: "STRING_VALUE", // required
  * //     ConfigFile: "STRING_VALUE",
  * //     OwnerId: "STRING_VALUE", // required
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //     RepositoryLinkId: "STRING_VALUE", // required
  * //     RepositoryName: "STRING_VALUE", // required
  * //     ResourceName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/ListConnectionsCommand.ts b/clients/client-codestar-connections/src/commands/ListConnectionsCommand.ts
index 5127c352fce3..69ff364d76a5 100644
--- a/clients/client-codestar-connections/src/commands/ListConnectionsCommand.ts
+++ b/clients/client-codestar-connections/src/commands/ListConnectionsCommand.ts
@@ -40,7 +40,7 @@ export interface ListConnectionsCommandOutput extends ListConnectionsOutput, __M
  * // const { CodeStarConnectionsClient, ListConnectionsCommand } = require("@aws-sdk/client-codestar-connections"); // CommonJS import
  * const client = new CodeStarConnectionsClient(config);
  * const input = { // ListConnectionsInput
- *   ProviderTypeFilter: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab",
+ *   ProviderTypeFilter: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged",
  *   HostArnFilter: "STRING_VALUE",
  *   MaxResults: Number("int"),
  *   NextToken: "STRING_VALUE",
@@ -52,7 +52,7 @@ export interface ListConnectionsCommandOutput extends ListConnectionsOutput, __M
  * //     { // Connection
  * //       ConnectionName: "STRING_VALUE",
  * //       ConnectionArn: "STRING_VALUE",
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab",
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged",
  * //       OwnerAccountId: "STRING_VALUE",
  * //       ConnectionStatus: "PENDING" || "AVAILABLE" || "ERROR",
  * //       HostArn: "STRING_VALUE",
diff --git a/clients/client-codestar-connections/src/commands/ListHostsCommand.ts b/clients/client-codestar-connections/src/commands/ListHostsCommand.ts
index eaaf142ece3a..46dd31b36649 100644
--- a/clients/client-codestar-connections/src/commands/ListHostsCommand.ts
+++ b/clients/client-codestar-connections/src/commands/ListHostsCommand.ts
@@ -50,7 +50,7 @@ export interface ListHostsCommandOutput extends ListHostsOutput, __MetadataBeare
  * //     { // Host
  * //       Name: "STRING_VALUE",
  * //       HostArn: "STRING_VALUE",
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab",
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged",
  * //       ProviderEndpoint: "STRING_VALUE",
  * //       VpcConfiguration: { // VpcConfiguration
  * //         VpcId: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/ListRepositoryLinksCommand.ts b/clients/client-codestar-connections/src/commands/ListRepositoryLinksCommand.ts
index bc38f473cd8e..63b7ff02c7c7 100644
--- a/clients/client-codestar-connections/src/commands/ListRepositoryLinksCommand.ts
+++ b/clients/client-codestar-connections/src/commands/ListRepositoryLinksCommand.ts
@@ -51,7 +51,7 @@ export interface ListRepositoryLinksCommandOutput extends ListRepositoryLinksOut
  * //       ConnectionArn: "STRING_VALUE", // required
  * //       EncryptionKeyArn: "STRING_VALUE",
  * //       OwnerId: "STRING_VALUE", // required
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //       RepositoryLinkArn: "STRING_VALUE", // required
  * //       RepositoryLinkId: "STRING_VALUE", // required
  * //       RepositoryName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/ListSyncConfigurationsCommand.ts b/clients/client-codestar-connections/src/commands/ListSyncConfigurationsCommand.ts
index 8205c8d9b7c0..00027c82bd10 100644
--- a/clients/client-codestar-connections/src/commands/ListSyncConfigurationsCommand.ts
+++ b/clients/client-codestar-connections/src/commands/ListSyncConfigurationsCommand.ts
@@ -53,7 +53,7 @@ export interface ListSyncConfigurationsCommandOutput extends ListSyncConfigurati
  * //       Branch: "STRING_VALUE", // required
  * //       ConfigFile: "STRING_VALUE",
  * //       OwnerId: "STRING_VALUE", // required
- * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //       ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //       RepositoryLinkId: "STRING_VALUE", // required
  * //       RepositoryName: "STRING_VALUE", // required
  * //       ResourceName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/UpdateRepositoryLinkCommand.ts b/clients/client-codestar-connections/src/commands/UpdateRepositoryLinkCommand.ts
index 7f12a09e588d..663e3ec47f8f 100644
--- a/clients/client-codestar-connections/src/commands/UpdateRepositoryLinkCommand.ts
+++ b/clients/client-codestar-connections/src/commands/UpdateRepositoryLinkCommand.ts
@@ -53,7 +53,7 @@ export interface UpdateRepositoryLinkCommandOutput extends UpdateRepositoryLinkO
  * //     ConnectionArn: "STRING_VALUE", // required
  * //     EncryptionKeyArn: "STRING_VALUE",
  * //     OwnerId: "STRING_VALUE", // required
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //     RepositoryLinkArn: "STRING_VALUE", // required
  * //     RepositoryLinkId: "STRING_VALUE", // required
  * //     RepositoryName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/commands/UpdateSyncConfigurationCommand.ts b/clients/client-codestar-connections/src/commands/UpdateSyncConfigurationCommand.ts
index 7f36b8df5109..d5015547f8ca 100644
--- a/clients/client-codestar-connections/src/commands/UpdateSyncConfigurationCommand.ts
+++ b/clients/client-codestar-connections/src/commands/UpdateSyncConfigurationCommand.ts
@@ -54,7 +54,7 @@ export interface UpdateSyncConfigurationCommandOutput extends UpdateSyncConfigur
  * //     Branch: "STRING_VALUE", // required
  * //     ConfigFile: "STRING_VALUE",
  * //     OwnerId: "STRING_VALUE", // required
- * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab", // required
+ * //     ProviderType: "Bitbucket" || "GitHub" || "GitHubEnterpriseServer" || "GitLab" || "GitLabSelfManaged", // required
  * //     RepositoryLinkId: "STRING_VALUE", // required
  * //     RepositoryName: "STRING_VALUE", // required
  * //     ResourceName: "STRING_VALUE", // required
diff --git a/clients/client-codestar-connections/src/models/models_0.ts b/clients/client-codestar-connections/src/models/models_0.ts
index 1d59ccb86942..b7af0f348596 100644
--- a/clients/client-codestar-connections/src/models/models_0.ts
+++ b/clients/client-codestar-connections/src/models/models_0.ts
@@ -61,6 +61,7 @@ export const ProviderType = {
   GITHUB: "GitHub",
   GITHUB_ENTERPRISE_SERVER: "GitHubEnterpriseServer",
   GITLAB: "GitLab",
+  GITLAB_SELF_MANAGED: "GitLabSelfManaged",
 } as const;
 
 /**
diff --git a/codegen/sdk-codegen/aws-models/codestar-connections.json b/codegen/sdk-codegen/aws-models/codestar-connections.json
index bc8dd16df7d9..8f8c613c17f3 100644
--- a/codegen/sdk-codegen/aws-models/codestar-connections.json
+++ b/codegen/sdk-codegen/aws-models/codestar-connections.json
@@ -2838,6 +2838,12 @@
           "traits": {
             "smithy.api#enumValue": "GitLab"
           }
+        },
+        "GITLAB_SELF_MANAGED": {
+          "target": "smithy.api#Unit",
+          "traits": {
+            "smithy.api#enumValue": "GitLabSelfManaged"
+          }
         }
       }
     },