diff --git a/components/blocks/CertificatesBlock.tsx b/components/blocks/CertificatesBlock.tsx
index bca82fb00..4745166ae 100644
--- a/components/blocks/CertificatesBlock.tsx
+++ b/components/blocks/CertificatesBlock.tsx
@@ -31,21 +31,21 @@ export const defaultCertificates: Certificate[] = [
     description: 'Umweltmanagementsystem',
     pdfUrl: '/assets/certificates/iso14001.pdf',
     type: 'iso',
-    date: '14.12.2023',
+    date: '06.12.2023 – 05.12.2026',
   },
   {
     title: 'ISO 9001:2015',
     description: 'Qualitätsmanagementsystem',
     pdfUrl: '/assets/certificates/iso9001.pdf',
     type: 'iso',
-    date: '14.12.2023',
+    date: '06.12.2023 – 05.12.2026',
   },
   {
     title: 'DIN EN ISO 45001:2018',
     description: 'Arbeits- und Gesundheitsschutz',
     pdfUrl: '/assets/certificates/iso45001.pdf',
     type: 'iso',
-    date: '05.12.2025',
+    date: '06.12.2025 – 05.12.2028',
   },
   {
     title: 'Betriebshaftpflichtversicherung',
diff --git a/content/en/zertifikate.mdx b/content/en/zertifikate.mdx
index 8d04a3657..068d1c69e 100644
--- a/content/en/zertifikate.mdx
+++ b/content/en/zertifikate.mdx
@@ -23,21 +23,21 @@ layout: "fullBleed"
       description: 'Environmental Management System',
       pdfUrl: '/assets/certificates/iso14001.pdf',
       type: 'iso',
-      date: '14.12.2023',
+      date: '06.12.2023 – 05.12.2026',
     },
     {
       title: 'ISO 9001:2015',
       description: 'Quality Management System',
       pdfUrl: '/assets/certificates/iso9001.pdf',
       type: 'iso',
-      date: '14.12.2023',
+      date: '06.12.2023 – 05.12.2026',
     },
     {
       title: 'DIN EN ISO 45001:2018',
       description: 'Occupational Health and Safety',
       pdfUrl: '/assets/certificates/iso45001.pdf',
       type: 'iso',
-      date: '05.12.2025',
+      date: '06.12.2025 – 05.12.2028',
     },
     {
       title: 'Commercial Liability Insurance',