diff --git a/gnuhealth-client.changes b/gnuhealth-client.changes
index c33cdb5..b00b257 100644
--- a/gnuhealth-client.changes
+++ b/gnuhealth-client.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Oct 11 14:20:00 UTC 2022 - Axel Braun <axel.braun@gmx.de>
+
+- explicit dependency on pydot and graphviz added
+
 -------------------------------------------------------------------
 Thu Jun 16 19:58:10 UTC 2022 - Axel Braun <axel.braun@gmx.de>
 
diff --git a/gnuhealth-client.spec b/gnuhealth-client.spec
index 2fa85a8..088b58f 100644
--- a/gnuhealth-client.spec
+++ b/gnuhealth-client.spec
@@ -47,6 +47,7 @@ BuildRequires:  update-desktop-files
 
 Requires:       gnu-free-fonts
 Requires:       gobject-introspection
+Requires:       graphviz
 Requires:       opencv
 Requires:       python3-GooCalendar >= 0.5
 Requires:       python3-cairo
@@ -58,6 +59,7 @@ Requires:       python3-gobject-Gdk
 Requires:       python3-gobject-cairo
 Requires:       python3-numpy
 Requires:       python3-opencv
+Requires:       python3-pydot
 Requires:       python3-pytz
 Requires:       python3-setuptools
 Requires:       python3-simplejson