diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c80b488a4ec8233b49d3b9a57e72a98775fefd1..e97ee60277dc83f92cfaf32739e8ce3c8062833c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@
 ### Added
 - Pause playing animation
   [#115](https://git.project-insanity.org/onny/nextcloud-app-podcast/-/issues/115) @onny
+- Tested and enabled support for Nextcloud 21
+  [#126](https://git.project-insanity.org/onny/nextcloud-app-podcast/-/issues/126) @onny
 
 ### Fixed
 - Player: Display correct position while seeking
diff --git a/README.md b/README.md
index e63cdb3204a5c4bfd1a7a79d94c29923dc297a88..d9eb0c785bec4284e90912e2ed6d9e7b328f2224 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,13 @@ Where -t specifies the container id. If you further need to access the sqlite-da
 docker run -v /tmp/dockerdata:/data/data -v /tmp/nextcloud-app-podcast:/opt/nextcloud/apps/podcast -d --name nextcloud -p 80:80 rootlogin/nextcloud
 ```
 
+To manually test unstable Nextcloud or PHP versions, you can do this:
+```
+git clone https://git.project-insanity.org/onny/docker-nextcloud.git
+docker build -t nextcloud-21 .
+docker run -v /tmp/nextcloud-app-podcast:/opt/nextcloud/apps/podcast -d --name nextcloud-app-podcast-21 -p 80:80 nextcloud-21
+```
+
 ## Development notes
 ### General
 While editing the code, you could run following helper script to automatically
diff --git a/appinfo/info.xml b/appinfo/info.xml
index 8105e44de7e57888e346ddb6e2675b847396d37c..eb989ea04dd2c4e4efd76338edbef98e2fe59f35 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -27,7 +27,7 @@
     <screenshot small-thumbnail="https://git.project-insanity.org/onny/nextcloud-app-podcast/raw/master/dist/screenshot-thumbnail3.jpg">https://git.project-insanity.org/onny/nextcloud-app-podcast/raw/master/dist/screenshot3.png</screenshot>
     <dependencies>
         <php min-version="7.4" max-version="7.4" />
-        <nextcloud min-version="20" max-version="20"/>
+        <nextcloud min-version="20" max-version="21"/>
     </dependencies>
     <navigations>
         <navigation>