diff --git a/.gitignore b/.gitignore
index 54e291e..e2b80ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@
 /libarcus-3.5.1.tar.gz
 /libarcus-3.6.0.tar.gz
 /libarcus-4.0.0.tar.gz
+/libarcus-4.1.0.tar.gz
diff --git a/libarcus.spec b/libarcus.spec
index e62e579..2786656 100644
--- a/libarcus.spec
+++ b/libarcus.spec
@@ -1,5 +1,5 @@
 Name:           libarcus
-Version:        4.0.0
+Version:        4.1.0
 Release:        1%{?dist}
 Summary:        Communication library between internal components for Ultimaker software
 License:        LGPLv3+
@@ -12,6 +12,7 @@ Patch1:         libArcus-3.5.1-PyQt5.sip.patch
 BuildRequires:  protobuf-devel
 BuildRequires:  python3-devel
 BuildRequires:  python3-protobuf
+BuildRequires:  python3-sip
 BuildRequires:  python3-sip-devel
 BuildRequires:  /usr/bin/sip
 BuildRequires:  cmake
@@ -54,12 +55,15 @@ between Cura and its backend and similar code.
 %prep
 %autosetup -n libArcus-%{version} -p1 -S git
 
+# https://github.com/Ultimaker/libArcus/pull/94#issuecomment-505376760
+sed -i 's/Python3_SITELIB/Python3_SITEARCH/' cmake/SIPMacros.cmake
+
 %build
 %{cmake} -DBUILD_EXAMPLES:BOOL=OFF -DCMAKE_SKIP_RPATH:BOOL=ON .
-make %{?_smp_mflags}
+%make_build
 
 %install
-make install DESTDIR=%{buildroot}
+%make_install
 
 %files
 %license LICENSE
@@ -81,6 +85,9 @@ make install DESTDIR=%{buildroot}
 %{python3_sitearch}/Arcus.so
 
 %changelog
+* Tue Jun 18 2019 Gabriel Féron <feron.gabriel@gmail.com> - 4.1.0-1
+- Update to 4.1.0
+
 * Wed Apr 03 2019 Gabriel Féron <feron.gabriel@gmail.com> - 4.0.0-1
 - Update to 4.0.0
 
diff --git a/sources b/sources
index 0be8b4b..ab95bc9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libarcus-4.0.0.tar.gz) = 58df6f1cb74244270005a113641c5a8470dfc10ee222bc6a5e68dc803a7bbf3ad7905f982e70f73dc6f2ac98cec2cb577d65d47242eaef2ffdab2504e57e408c
+SHA512 (libarcus-4.1.0.tar.gz) = 3d61016ebb043c9d9df0e3ff6b6be9f67a46901387ce20301bfa1a70b97e452556b2daf7371f7f90f3ba9eaca84c7c6e738d981e6ec87174af998f6de9e049e8