diff --git a/system.prop b/system.prop
index c4843db..2cc0649 100644
--- a/system.prop
+++ b/system.prop
@@ -64,6 +64,9 @@ media.aac_51_output_enabled=true
 # Perf
 ro.vendor.extension_library=libqti-perfd-client.so
 
+# Security patch level
+ro.lineage.build.vendor_security_patch=2018-01-01
+
 # TCP
 net.tcp.2g_init_rwnd=10