diff --git a/libs/feature/search/src/lib/utils/mapper/elasticsearch.mapper.spec.ts b/libs/feature/search/src/lib/utils/mapper/elasticsearch.mapper.spec.ts
index 45a2ecb1b6..1774166759 100644
--- a/libs/feature/search/src/lib/utils/mapper/elasticsearch.mapper.spec.ts
+++ b/libs/feature/search/src/lib/utils/mapper/elasticsearch.mapper.spec.ts
@@ -78,7 +78,8 @@ describe('ElasticsearchMapper', () => {
             abstract: 'The grid is based on proposal ',
             id: '12456',
             metadataUrl: 'url',
-            thumbnailUrl: 'data:image/png;base64,',
+            thumbnailUrl:
+              'https://sdi.eea.europa.eu/public/catalogue-graphic-overview/20e9e1a1-83c1-4f13-89ef-c19767d6ee18f.png',
             title: 'EEA reference grid for Germany (10km), May 2013',
             uuid: '20e9e1a1-83c1-4f13-89ef-c19767d6ee18f',
             catalogUuid: '6731be1e-6533-44e0-9b8a-580b45e36e80',
@@ -90,7 +91,8 @@ describe('ElasticsearchMapper', () => {
             abstract: 'Reference layer of the rivers sensitive areas, ',
             id: '12442',
             metadataUrl: 'url',
-            thumbnailUrl: 'data:image/png;base64,',
+            thumbnailUrl:
+              'https://sdi.eea.europa.eu/public/catalogue-graphic-overview/5b35f06e-8c6b-4907-b8f4-39541d170360.png',
             title:
               'Urban Waste Water Treatment Directive, Sensitive areas - rivers reported under UWWTD data call 2015, Nov. 2017',
             uuid: '5b35f06e-8c6b-4907-b8f4-39541d170360',
@@ -128,7 +130,9 @@ describe('ElasticsearchMapper', () => {
       describe('overview', () => {
         it('when data', async () => {
           const summary = await firstValueFrom(service.toRecord(hit))
-          expect(summary.thumbnailUrl).toBe('data:image/png;base64,')
+          expect(summary.thumbnailUrl).toBe(
+            'https://sdi.eea.europa.eu/public/catalogue-graphic-overview/20e9e1a1-83c1-4f13-89ef-c19767d6ee18f.png'
+          )
         })
         it('when no data and url', async () => {
           hit._source.overview = {
diff --git a/libs/ui/elements/src/lib/thumbnail/thumbnail.component.spec.ts b/libs/ui/elements/src/lib/thumbnail/thumbnail.component.spec.ts
index 883ee65813..5c52d38115 100644
--- a/libs/ui/elements/src/lib/thumbnail/thumbnail.component.spec.ts
+++ b/libs/ui/elements/src/lib/thumbnail/thumbnail.component.spec.ts
@@ -66,11 +66,11 @@ describe('ThumbnailComponent', () => {
       it('url attribute as url @Input', () => {
         expect(img.nativeElement.src).toEqual(url)
       })
-      it('sets object cover to cover', () => {
-        expect(img.nativeElement.style.objectFit).toEqual('cover')
+      it('sets object cover to contain', () => {
+        expect(img.nativeElement.style.objectFit).toEqual('contain')
       })
       it('sets img height to 100%', () => {
-        expect(img.nativeElement.classList.contains('h-full')).toBeTruthy()
+        expect(img.nativeElement.classList.contains('h-4/5')).toBeTruthy()
       })
     })
     describe('When an url is given and fit is set to "contain"', () => {