diff --git a/NEWS b/NEWS
index 88f3542c..220814c4 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,15 @@
+Changes in 1.8.5
+~~~~~~~~~~~~~~~~
+Released: 2020-01-14
+
+This is a security update that fixes a sandbox escape where a
+malicious application can execute code outside the sandbox
+by controlling the environment of the "flatpak run" command
+when spawning a sub-sandbox.
+
+See the advisory for details:
+  https://github.com/flatpak/flatpak/security/advisories/GHSA-4ppf-fxf6-vxg2
+
 Changes in 1.8.4
 ~~~~~~~~~~~~~~~~
 Released: 2020-12-22
diff --git a/configure.ac b/configure.ac
index 00e27052..53021c9a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,7 +15,7 @@ AC_PREREQ([2.63])
 
 m4_define([flatpak_major_version], [1])
 m4_define([flatpak_minor_version], [8])
-m4_define([flatpak_micro_version], [4])
+m4_define([flatpak_micro_version], [5])
 m4_define([flatpak_extra_version], [])
 m4_define([flatpak_interface_age], [0])
 m4_define([flatpak_binary_age],