diff --git a/src/vs/editor/common/modes.ts b/src/vs/editor/common/modes.ts
index dbeb3fb19566f..fa05b9b968cf2 100644
--- a/src/vs/editor/common/modes.ts
+++ b/src/vs/editor/common/modes.ts
@@ -396,10 +396,6 @@ export interface CompletionItem {
 	 * an icon is chosen by the editor.
 	 */
 	kind: CompletionItemKind;
-	/**
-	 * Indicates if this item is deprecated.
-	 */
-	deprecated?: boolean;
 	/**
 	 * A human-readable string with additional information
 	 * about this item, like type or symbol information.
diff --git a/src/vs/monaco.d.ts b/src/vs/monaco.d.ts
index 75692fbccebc1..982a16b87ef94 100644
--- a/src/vs/monaco.d.ts
+++ b/src/vs/monaco.d.ts
@@ -4790,10 +4790,6 @@ declare namespace monaco.languages {
 		 * an icon is chosen by the editor.
 		 */
 		kind: CompletionItemKind;
-		/**
-		 * Indicates if this item is deprecated.
-		 */
-		deprecated?: boolean;
 		/**
 		 * A human-readable string with additional information
 		 * about this item, like type or symbol information.