diff --git a/Changes b/Changes
index 42c17c1..c7c3d9d 100755
--- a/Changes
+++ b/Changes
@@ -1,5 +1,10 @@
-0.39 2020-06-18
+0.39 2020-06-24
         - Add information on secret file to Readme.
+        - Change default API endpoint to korap.ids-mannheim.de.
+
+        WARNING: If you relied on the former default API endpoint
+          being http://localhost:9999/, this will break your
+          deployment. Please override the default API endpoint.
 
 0.38 2020-06-16
         - Support X-Forwarded-Host name for proxy.
diff --git a/README.md b/README.md
index 1cd9fa4..6e50c9e 100644
--- a/README.md
+++ b/README.md
@@ -98,7 +98,7 @@
 
 Kalamar will then be available at `localhost:3000` in your browser.
 
-By default, Kalamar tries to connect to `http://localhost:9999/api/`,
+By default, Kalamar tries to connect to `https://korap.ids-mannheim.de/api/`,
 followed by the most current version of the API.
 You may change that endpoint to the KorAP API provider in the configuration
 (see [Kustvakt](https://github.com/KorAP/Kustvakt) for further information)
diff --git a/kalamar.conf b/kalamar.conf
index 95fed5b..38fc57f 100644
--- a/kalamar.conf
+++ b/kalamar.conf
@@ -30,7 +30,7 @@
 #     See Mojolicious::Plugin::Piwik
 
 # The default Kustvakt api endpoint
-my $api = 'http://localhost:9999/api/';
+my $api = 'https://korap.ids-mannheim.de/api/';
 {
   Kalamar => {
     # Backend server path