diff --git a/plugins/git-release-manager/src/features/CreateReleaseCandidate/hooks/useCreateReleaseCandidate.test.tsx b/plugins/git-release-manager/src/features/CreateReleaseCandidate/hooks/useCreateReleaseCandidate.test.tsx
index d8703e0278..b6d7335d8c 100644
--- a/plugins/git-release-manager/src/features/CreateReleaseCandidate/hooks/useCreateReleaseCandidate.test.tsx
+++ b/plugins/git-release-manager/src/features/CreateReleaseCandidate/hooks/useCreateReleaseCandidate.test.tsx
@@ -26,8 +26,8 @@ import {
 } from '../../../test-helpers/test-helpers';
 import { useCreateReleaseCandidate } from './useCreateReleaseCandidate';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: () => mockApiClient,
 }));
 jest.mock('../../../contexts/UserContext', () => ({
diff --git a/plugins/git-release-manager/src/features/Features.test.tsx b/plugins/git-release-manager/src/features/Features.test.tsx
index 7e2428b6bc..34565e03f8 100644
--- a/plugins/git-release-manager/src/features/Features.test.tsx
+++ b/plugins/git-release-manager/src/features/Features.test.tsx
@@ -21,8 +21,8 @@ import { Features } from './Features';
 import { mockApiClient, mockCalverProject } from '../test-helpers/test-helpers';
 import { TEST_IDS } from '../test-helpers/test-ids';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: () => mockApiClient,
 }));
 jest.mock('../contexts/ProjectContext', () => ({
diff --git a/plugins/git-release-manager/src/features/Patch/PatchBody.test.tsx b/plugins/git-release-manager/src/features/Patch/PatchBody.test.tsx
index e9dc978845..8171669ed8 100644
--- a/plugins/git-release-manager/src/features/Patch/PatchBody.test.tsx
+++ b/plugins/git-release-manager/src/features/Patch/PatchBody.test.tsx
@@ -29,8 +29,8 @@ import {
 import { PatchBody } from './PatchBody';
 import { TEST_IDS } from '../../test-helpers/test-ids';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: () => mockApiClient,
 }));
 jest.mock('../../contexts/ProjectContext', () => ({
diff --git a/plugins/git-release-manager/src/features/Patch/hooks/usePatch.test.ts b/plugins/git-release-manager/src/features/Patch/hooks/usePatch.test.ts
index 95f3e787fd..f734c8ff0c 100644
--- a/plugins/git-release-manager/src/features/Patch/hooks/usePatch.test.ts
+++ b/plugins/git-release-manager/src/features/Patch/hooks/usePatch.test.ts
@@ -28,8 +28,8 @@ import {
 } from '../../../test-helpers/test-helpers';
 import { usePatch } from './usePatch';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: () => mockApiClient,
 }));
 jest.mock('../../../contexts/UserContext', () => ({
diff --git a/plugins/git-release-manager/src/features/PromoteRc/hooks/usePromoteRc.test.ts b/plugins/git-release-manager/src/features/PromoteRc/hooks/usePromoteRc.test.ts
index 1c4e794227..3973f205e5 100644
--- a/plugins/git-release-manager/src/features/PromoteRc/hooks/usePromoteRc.test.ts
+++ b/plugins/git-release-manager/src/features/PromoteRc/hooks/usePromoteRc.test.ts
@@ -25,8 +25,8 @@ import {
 } from '../../../test-helpers/test-helpers';
 import { usePromoteRc } from './usePromoteRc';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: () => mockApiClient,
 }));
 jest.mock('../../../contexts/ProjectContext', () => ({
diff --git a/plugins/git-release-manager/src/features/RepoDetailsForm/Owner.test.tsx b/plugins/git-release-manager/src/features/RepoDetailsForm/Owner.test.tsx
index bbe2e23e06..623fefbfc5 100644
--- a/plugins/git-release-manager/src/features/RepoDetailsForm/Owner.test.tsx
+++ b/plugins/git-release-manager/src/features/RepoDetailsForm/Owner.test.tsx
@@ -33,8 +33,8 @@ jest.mock('react-router', () => ({
     search: mockSearchCalver,
   })),
 }));
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: () => mockApiClient,
 }));
 jest.mock('../../contexts/ProjectContext', () => ({
diff --git a/plugins/git-release-manager/src/features/RepoDetailsForm/Repo.test.tsx b/plugins/git-release-manager/src/features/RepoDetailsForm/Repo.test.tsx
index fe942d6c54..90d103848c 100644
--- a/plugins/git-release-manager/src/features/RepoDetailsForm/Repo.test.tsx
+++ b/plugins/git-release-manager/src/features/RepoDetailsForm/Repo.test.tsx
@@ -32,8 +32,8 @@ jest.mock('react-router', () => ({
     search: mockSearchCalver,
   })),
 }));
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: () => mockApiClient,
 }));
 jest.mock('../../contexts/ProjectContext', () => ({
diff --git a/plugins/search/src/components/SearchBar/SearchBar.test.tsx b/plugins/search/src/components/SearchBar/SearchBar.test.tsx
index 08d56cbc94..165883b088 100644
--- a/plugins/search/src/components/SearchBar/SearchBar.test.tsx
+++ b/plugins/search/src/components/SearchBar/SearchBar.test.tsx
@@ -22,8 +22,8 @@ import { SearchContextProvider } from '../SearchContext';
 import { SearchBar } from './SearchBar';
 import { useApi } from '@backstage/core-plugin-api';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: jest.fn().mockReturnValue({}),
 }));
 
diff --git a/plugins/search/src/components/SearchContext/SearchContext.test.tsx b/plugins/search/src/components/SearchContext/SearchContext.test.tsx
index 42c55a3b29..aa2f8e5668 100644
--- a/plugins/search/src/components/SearchContext/SearchContext.test.tsx
+++ b/plugins/search/src/components/SearchContext/SearchContext.test.tsx
@@ -22,8 +22,8 @@ import { useSearch, SearchContextProvider } from './SearchContext';
 
 import { useApi } from '@backstage/core-plugin-api';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: jest.fn(),
 }));
 
diff --git a/plugins/search/src/components/SearchFilter/SearchFilter.test.tsx b/plugins/search/src/components/SearchFilter/SearchFilter.test.tsx
index b171d0c20f..ec27286d83 100644
--- a/plugins/search/src/components/SearchFilter/SearchFilter.test.tsx
+++ b/plugins/search/src/components/SearchFilter/SearchFilter.test.tsx
@@ -22,8 +22,8 @@ import { SearchFilter } from './SearchFilter';
 import { SearchContextProvider } from '../SearchContext';
 import { useApi } from '@backstage/core-plugin-api';
 
-jest.mock('@backstage/core', () => ({
-  ...jest.requireActual('@backstage/core'),
+jest.mock('@backstage/core-plugin-api', () => ({
+  ...jest.requireActual('@backstage/core-plugin-api'),
   useApi: jest.fn().mockReturnValue({}),
 }));