diff --git a/pkg.info b/pkg.info
index 72325e2..ee34053 100644
--- a/pkg.info
+++ b/pkg.info
@@ -1,7 +1,7 @@
 name: glibc
 description: The GNU C Library
 version: 2.41
-revision: 3
+revision: 4
 url: https://www.gnu.org/software/libc/
 license: GPL2-or-later,LGPL2.1-or-later,BSD-3-Clause
 architecture: any
diff --git a/post_upgrade.sh b/post_upgrade.sh
new file mode 100644
index 0000000..1850f4e
--- /dev/null
+++ b/post_upgrade.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# Regenerate locales
+locale-gen
+
+# Rebuild dynamic loader cache
+ldconfig -r "$BPM_ROOT"
+
+# Update iconv module configuration cache
+iconvconfig