diff --git a/pre_install/build/install b/pre_install/build/install
index 659a851..3e228c0 100644
--- a/pre_install/build/install
+++ b/pre_install/build/install
@@ -1,6 +1,6 @@
 #!/bin/bash -eu
 
-LIBRENMS_VERSION=${LIBRENMS_VERSION:-21.8.0}
+LIBRENMS_VERSION=${LIBRENMS_VERSION:-21.9.0}
 LIBRENMS_WEATHERMAP_VERSION=2b9e0f2e7df80b1e5eb75a1470bc657325cbb381
 
 # Dependencies