diff --git a/python3-pynest2d.changes b/python3-pynest2d.changes
index 180b050..16b0850 100644
--- a/python3-pynest2d.changes
+++ b/python3-pynest2d.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Sat Nov 21 00:38:15 UTC 2020 - Stefan Brüns <stefan.bruens@rwth-aachen.de>
+
+- Depend on python3-sip < 5, as libSavitar build is incompatible
+  with SIP 5 and upstream currently has no intention to update,
+  see gh#Ultimaker/libSavitar#26.
+
 -------------------------------------------------------------------
 Tue Nov 10 18:42:57 UTC 2020 - Stefan Brüns <stefan.bruens@rwth-aachen.de>
 
diff --git a/python3-pynest2d.spec b/python3-pynest2d.spec
index 7783f94..fb762d9 100644
--- a/python3-pynest2d.spec
+++ b/python3-pynest2d.spec
@@ -23,7 +23,7 @@ Release:        0
 Summary:        CPython bindings for libnest2d
 License:        LGPL-3.0-only
 Group:          Development/Libraries/C and C++
-URL:            https://github.com/Ultimaker/%name
+URL:            https://github.com/Ultimaker/pynest2d
 Source:         https://github.com/Ultimaker/pynest2d/archive/%{sversion}.tar.gz#/pynest2d-%{version}.tar.gz
 # PATCH-FIX-OPENSUSE -- add PyQt5 namespace
 Patch0:         pynest2d-PyQt5.sip.patch
@@ -32,7 +32,7 @@ Patch1:         Retrieve-required-flags-from-Libnest2D-target.patch
 BuildRequires:  cmake >= 3.6
 BuildRequires:  gcc-c++
 BuildRequires:  libnest2d-devel
-BuildRequires:  python3-sip-devel
+BuildRequires:  python3-sip-devel < 5
 
 %description
 Binding allowing libnest2d to be called from Python using Numpy.