diff --git a/frontend/src/interfaces/uiConfig.ts b/frontend/src/interfaces/uiConfig.ts
index 65070583ec..54aa053905 100644
--- a/frontend/src/interfaces/uiConfig.ts
+++ b/frontend/src/interfaces/uiConfig.ts
@@ -76,7 +76,6 @@ export type UiFlags = {
     showInactiveUsers?: boolean;
     featureSearchFeedbackPosting?: boolean;
     userAccessUIEnabled?: boolean;
-    outdatedSdksBanner?: boolean;
     displayTrafficDataUsage?: boolean;
     estimateTrafficDataCost?: boolean;
     disableShowContextFieldSelectionValues?: boolean;
diff --git a/src/lib/types/experimental.ts b/src/lib/types/experimental.ts
index 83b42a03df..b05c8626a0 100644
--- a/src/lib/types/experimental.ts
+++ b/src/lib/types/experimental.ts
@@ -45,7 +45,6 @@ export type IFlagKey =
     | 'userAccessUIEnabled'
     | 'disableUpdateMaxRevisionId'
     | 'disablePublishUnannouncedEvents'
-    | 'outdatedSdksBanner'
     | 'responseTimeMetricsFix'
     | 'disableShowContextFieldSelectionValues'
     | 'projectOverviewRefactorFeedback'
@@ -181,10 +180,6 @@ const flags: IFlags = {
         process.env.UNLEASH_EXPERIMENTAL_ADMIN_TOKEN_KILL_SWITCH,
         false,
     ),
-    outdatedSdksBanner: parseEnvVarBoolean(
-        process.env.UNLEASH_EXPERIMENTAL_OUTDATED_SDKS_BANNER,
-        false,
-    ),
     feedbackComments: {
         name: 'feedbackComments',
         enabled: parseEnvVarBoolean(
diff --git a/src/server-dev.ts b/src/server-dev.ts
index be7e586391..a1d9dc190c 100644
--- a/src/server-dev.ts
+++ b/src/server-dev.ts
@@ -44,7 +44,6 @@ process.nextTick(async () => {
                         celebrateUnleash: true,
                         featureSearchFeedbackPosting: true,
                         userAccessUIEnabled: true,
-                        outdatedSdksBanner: true,
                         disableShowContextFieldSelectionValues: false,
                         projectOverviewRefactorFeedback: true,
                         manyStrategiesPagination: true,