diff --git a/debian/control b/debian/control
index 518b4fa..7718c6f 100644
--- a/debian/control
+++ b/debian/control
@@ -17,7 +17,7 @@ Build-Depends: debhelper-compat (= 13),
 Package: metaproxy
 Section: net
 Architecture: any
-Depends: ${shlibs:Depends}, libmetaproxy6 (= ${source:Version})
+Depends: ${shlibs:Depends}, libmetaproxy6 (= ${source:Version}), adduser
 Conflicts: cf-engine (<= 2.12.5)
 Provides: metaproxy6
 Description: Z39.50/SRU router (main executable)
diff --git a/metaproxy.spec b/metaproxy.spec
index 3b4f7e5..9a28137 100644
--- a/metaproxy.spec
+++ b/metaproxy.spec
@@ -25,6 +25,8 @@ URL: https://www.indexdata.com/metaproxy
 %{?systemd_requires}
 
 Requires:  libmetaproxy6 = %{version}
+Requires(post): shadow-utils
+Requires(preun): shadow-utils
 Provides: metaproxy6
 
 %description