diff --git a/contrib/unbound.service.in b/contrib/unbound.service.in
index e3361db59..ec6b3ba28 100644
--- a/contrib/unbound.service.in
+++ b/contrib/unbound.service.in
@@ -54,7 +54,7 @@ ExecReload=+/bin/kill -HUP $MAINPID
 ExecStart=@UNBOUND_SBIN_DIR@/unbound -d
 NotifyAccess=main
 Type=notify
-CapabilityBoundingSet=CAP_IPC_LOCK CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_SYS_RESOURCE CAP_NET_RAW CAP_CHOWN
+CapabilityBoundingSet=CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_SYS_RESOURCE CAP_NET_RAW CAP_CHOWN
 MemoryDenyWriteExecute=true
 NoNewPrivileges=true
 PrivateDevices=true
diff --git a/contrib/unbound_portable.service.in b/contrib/unbound_portable.service.in
index 9e830cd21..a77df49fa 100644
--- a/contrib/unbound_portable.service.in
+++ b/contrib/unbound_portable.service.in
@@ -28,7 +28,7 @@ ExecReload=+/bin/kill -HUP $MAINPID
 ExecStart=@UNBOUND_SBIN_DIR@/unbound -d
 NotifyAccess=main
 Type=notify
-CapabilityBoundingSet=CAP_IPC_LOCK CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_SYS_RESOURCE CAP_NET_RAW CAP_CHOWN
+CapabilityBoundingSet=CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_SYS_RESOURCE CAP_NET_RAW CAP_CHOWN
 MemoryDenyWriteExecute=true
 NoNewPrivileges=true
 PrivateDevices=true