diff --git a/packages/backend-common/api-report.md b/packages/backend-common/api-report.md
index 5a9b61dd20..23e22fe34b 100644
--- a/packages/backend-common/api-report.md
+++ b/packages/backend-common/api-report.md
@@ -65,9 +65,9 @@ export class BitbucketUrlReader implements UrlReader {
 
 // @public
 export interface CacheClient {
-    delete(key: string): Promise<boolean>;
+    delete(key: string): Promise<void>;
     get(key: string): Promise<JsonValue | undefined>;
-    set(key: string, value: JsonValue, options?: CacheSetOptions): Promise<boolean>;
+    set(key: string, value: JsonValue, options?: CacheSetOptions): Promise<void>;
 }
 
 // @public
diff --git a/packages/backend-common/src/cache/CacheClient.test.ts b/packages/backend-common/src/cache/CacheClient.test.ts
index eb32d4a28f..81e8351b58 100644
--- a/packages/backend-common/src/cache/CacheClient.test.ts
+++ b/packages/backend-common/src/cache/CacheClient.test.ts
@@ -101,16 +101,6 @@ describe('CacheClient', () => {
 
       return expect(sut.set('someKey', {})).rejects.toEqual(expectedError);
     });
-
-    it('resolves what underlying client resolves', async () => {
-      const sut = new DefaultCacheClient({ client });
-      const expectedResponse = true;
-      client.set = jest.fn().mockReturnValue(expectedResponse);
-
-      const actualResponse = await sut.set('someKey', {});
-
-      return expect(actualResponse).toEqual(expectedResponse);
-    });
   });
 
   describe('CacheClient.delete', () => {
@@ -132,15 +122,5 @@ describe('CacheClient', () => {
 
       return expect(sut.delete('someKey')).rejects.toEqual(expectedError);
     });
-
-    it('resolves what underlying client resolves', async () => {
-      const sut = new DefaultCacheClient({ client });
-      const expectedResponse = false;
-      client.delete = jest.fn().mockResolvedValue(expectedResponse);
-
-      const actualResponse = await sut.delete('someKey');
-
-      return expect(actualResponse).toEqual(expectedResponse);
-    });
   });
 });
diff --git a/packages/backend-common/src/cache/CacheClient.ts b/packages/backend-common/src/cache/CacheClient.ts
index a2c048c265..49b5c367dd 100644
--- a/packages/backend-common/src/cache/CacheClient.ts
+++ b/packages/backend-common/src/cache/CacheClient.ts
@@ -46,17 +46,12 @@ export interface CacheClient {
    * optional TTL may also be provided, otherwise it defaults to the TTL that
    * was provided when the client was instantiated.
    */
-  set(
-    key: string,
-    value: JsonValue,
-    options?: CacheSetOptions,
-  ): Promise<boolean>;
+  set(key: string, value: JsonValue, options?: CacheSetOptions): Promise<void>;
 
   /**
-   * Removes the given key from the cache store. Resolves true if the key
-   * existed, or false if not.
+   * Removes the given key from the cache store.
    */
-  delete(key: string): Promise<boolean>;
+  delete(key: string): Promise<void>;
 }
 
 /**
@@ -79,14 +74,14 @@ export class DefaultCacheClient implements CacheClient {
     key: string,
     value: JsonValue,
     opts: CacheSetOptions = {},
-  ): Promise<boolean> {
+  ): Promise<void> {
     const k = this.getNormalizedKey(key);
-    return await this.client.set(k, value, opts.ttl);
+    await this.client.set(k, value, opts.ttl);
   }
 
-  async delete(key: string): Promise<boolean> {
+  async delete(key: string): Promise<void> {
     const k = this.getNormalizedKey(key);
-    return await this.client.delete(k);
+    await this.client.delete(k);
   }
 
   /**