diff --git a/landlock/CHANGELOG.md b/landlock/CHANGELOG.md
index 6e0062c..fe6caf4 100644
--- a/landlock/CHANGELOG.md
+++ b/landlock/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Revision history for landlock
 
-## 0.2.1.1 -- YYYY-mm-dd
+## 0.2.1.1 -- 2023-02-28
 
 * Extend API documentation with links to man-pages.
 
diff --git a/psx/CHANGELOG.md b/psx/CHANGELOG.md
index 409d381..a1afa33 100644
--- a/psx/CHANGELOG.md
+++ b/psx/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Revision history for psx
 
-## 0.1.1.1 -- YYYY-mm-dd
+## 0.1.1.1 -- 2023-02-28
 
 * Remove `-Wl,-undefined,__wrap_sigfillset` from link options.