diff --git a/lib/modules/datasource/azure-bicep-resource/index.spec.ts b/lib/modules/datasource/azure-bicep-resource/index.spec.ts
index 4afbff7d53e9ee7d32a41e77f09fe78eb672bd7f..0b1dff2be12647e45da84f0f854115a5464a9016 100644
--- a/lib/modules/datasource/azure-bicep-resource/index.spec.ts
+++ b/lib/modules/datasource/azure-bicep-resource/index.spec.ts
@@ -28,7 +28,7 @@ describe('modules/datasource/azure-bicep-resource/index', () => {
     expect(result).toBeNull();
   });
 
-  it('should return versions when package is a function', async () => {
+  it('should return null when package is a function', async () => {
     httpMock
       .scope(gitHubHost)
       .get(indexPath)
@@ -57,23 +57,10 @@ describe('modules/datasource/azure-bicep-resource/index', () => {
 
     const azureBicepResourceDatasource = new AzureBicepResourceDatasource();
     const result = await azureBicepResourceDatasource.getReleases({
-      packageName: 'Microsoft.Billing/billingAccounts',
+      packageName: 'unknown',
     });
 
-    expect(result).toEqual({
-      releases: [
-        {
-          version: '2019-10-01-preview',
-          changelogUrl:
-            'https://learn.microsoft.com/en-us/azure/templates/microsoft.billing/change-log/billingaccounts#2019-10-01-preview',
-        },
-        {
-          version: '2020-05-01',
-          changelogUrl:
-            'https://learn.microsoft.com/en-us/azure/templates/microsoft.billing/change-log/billingaccounts#2020-05-01',
-        },
-      ],
-    });
+    expect(result).toBeNull();
   });
 
   it('should return versions when package is a resource', async () => {
@@ -117,4 +104,46 @@ describe('modules/datasource/azure-bicep-resource/index', () => {
       ],
     });
   });
+
+  it('should return versions when package is a resource and a function', async () => {
+    httpMock
+      .scope(gitHubHost)
+      .get(indexPath)
+      .reply(
+        200,
+        codeBlock`
+          {
+            "resources": {
+              "Microsoft.OperationalInsights/workspaces@2023-09-01": {
+                "$ref": "operationalinsights/microsoft.operationalinsights/2023-09-01/types.json#/31"
+              }
+            },
+            "resourceFunctions": {
+              "microsoft.operationalinsights/workspaces": {
+                "2015-03-20": [
+                  {
+                    "$ref": "operationalinsights/workspaces/2015-03-20/types.json#/304"
+                  }
+                ]
+              }
+            }
+          }
+        `,
+      );
+
+    const azureBicepResourceDatasource = new AzureBicepResourceDatasource();
+    const result = await azureBicepResourceDatasource.getReleases({
+      packageName: 'Microsoft.OperationalInsights/workspaces',
+    });
+
+    expect(result).toEqual({
+      releases: [
+        {
+          version: '2023-09-01',
+          changelogUrl:
+            'https://learn.microsoft.com/en-us/azure/templates/microsoft.operationalinsights/change-log/workspaces#2023-09-01',
+        },
+      ],
+    });
+  });
 });
diff --git a/lib/modules/datasource/azure-bicep-resource/schema.ts b/lib/modules/datasource/azure-bicep-resource/schema.ts
index 70dd2938f54f03fe65f7771817144eec52a6eaac..c94db6faea33defd51f0ecadb43ee2967a23d365 100644
--- a/lib/modules/datasource/azure-bicep-resource/schema.ts
+++ b/lib/modules/datasource/azure-bicep-resource/schema.ts
@@ -3,9 +3,8 @@ import { z } from 'zod';
 export const BicepResourceVersionIndex = z
   .object({
     resources: z.record(z.string(), z.unknown()),
-    resourceFunctions: z.record(z.string(), z.record(z.string(), z.unknown())),
   })
-  .transform(({ resources, resourceFunctions }) => {
+  .transform(({ resources }) => {
     const releaseMap = new Map<string, string[]>();
 
     for (const resourceReference of Object.keys(resources)) {
@@ -15,11 +14,6 @@ export const BicepResourceVersionIndex = z
       releaseMap.set(type, versions);
     }
 
-    for (const [type, versionMap] of Object.entries(resourceFunctions)) {
-      const versions = Object.keys(versionMap);
-      releaseMap.set(type, versions);
-    }
-
     return Object.fromEntries(releaseMap);
   });