diff --git a/src/Pages/Software/education.json b/src/Pages/Software/education.json
index c786e7b..3d2b60e 100644
--- a/src/Pages/Software/education.json
+++ b/src/Pages/Software/education.json
@@ -24,7 +24,7 @@
             "duration": 16.5,
             "intstitution": "Udemy",
             "link": "https://www.udemy.com/course/responsive-web-design-tutorial-course-html5-css3-bootstrap/",
-            "certificate": "https://www.matsubara.nl/udemy-certs/UC-154acaf8-cdf8-4194-9f93-2e978ed96611.pdf"
+            "certificate": "https://www.udemy.com/certificate/UC-154acaf8-cdf8-4194-9f93-2e978ed96611/"
         },
         {
             "name": "Elm",
@@ -34,7 +34,7 @@
             "duration": 21.5,
             "intstitution": "Udemy",
             "link": "https://www.udemy.com/course/elm-the-complete-guide/",
-            "certificate": "https://www.matsubara.nl/udemy-certs/UC-17b9db07-37a1-43e1-be5e-1e179e3c1c09.pdf"
+            "certificate": "https://www.udemy.com/certificate/UC-17b9db07-37a1-43e1-be5e-1e179e3c1c09/"
         },
         {
             "name": "F# From the Ground Up",
@@ -44,7 +44,7 @@
             "duration": 5.5,
             "intstitution": "Udemy",
             "link": "https://www.udemy.com/course/fsharp-from-the-ground-up/",
-            "certificate": "https://www.matsubara.nl/udemy-certs/UC-821edd16-10a7-499f-b66e-2bd97f3ce3dd.pdf"
+            "certificate": "https://www.udemy.com/certificate/UC-821edd16-10a7-499f-b66e-2bd97f3ce3dd/"
         },
         {
             "name": "Docker Mastery",