diff --git a/docs/changelog.md b/docs/changelog.md
index 384d5ee..080ea7f 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -7,7 +7,7 @@ SPDX-License-Identifier: CC-BY-4.0
 
 ## [Desktop Cube 21 [backport release]](https://github.com/schneegans/Desktop-Cube/releases/tag/v21)
 
-**Release Date:** TBD
+**Release Date:** 2023-10-07
 
 #### Enhancements
 
@@ -15,7 +15,7 @@ SPDX-License-Identifier: CC-BY-4.0
 
 ## [Desktop Cube 20](https://github.com/schneegans/Desktop-Cube/releases/tag/v20)
 
-**Release Date:** TBD
+**Release Date:** 2023-10-07
 
 #### Enhancements