diff --git a/site/hugo.yaml b/site/hugo.yaml
index 75c844af..465efaff 100644
--- a/site/hugo.yaml
+++ b/site/hugo.yaml
@@ -5,7 +5,7 @@ disableKinds: ['RSS', 'taxonomy']
 
 params:
     dataapibase: https://data.javaalmanac.io/v1/
-    jvmspecbase: https://docs.oracle.com/javase/specs/jvms/se11/html/
+    jvmspecbase: https://docs.oracle.com/javase/specs/jvms/se21/html/
     api:
         find: https://sandbox.javaalmanac.io/find
         sandbox: https://sandbox.javaalmanac.io/