diff --git a/net/libarcus/Makefile b/net/libarcus/Makefile
index 8cf6879353bd..3161440ea2d3 100644
--- a/net/libarcus/Makefile
+++ b/net/libarcus/Makefile
@@ -1,8 +1,7 @@
 # $FreeBSD$
 
 PORTNAME=	libArcus
-PORTVERSION=	4.7.1
-PORTREVISION=	2
+PORTVERSION=	4.8.0
 PORTEPOCH=	1
 CATEGORIES=	net cad
 DIST_SUBDIR=	Ultimaker
@@ -20,6 +19,8 @@ USE_PYQT=	sip pysip
 USE_GITHUB=	yes
 GH_ACCOUNT=	Ultimaker
 USE_LDCONFIG=	yes
-GH_TAGNAME=	6a68d7e0
+#GH_TAGNAME=	3afb644
 
+CMAKE_ARGS+=	-DPYTHON_EXECUTABLE:STRING=${PYTHON_CMD} \
+				-DPYTHON_INCLUDEDIR:STRING=${PYTHON_INCLUDEDIR}
 .include <bsd.port.mk>
diff --git a/net/libarcus/distinfo b/net/libarcus/distinfo
index f0439834109e..99811ae0fef6 100644
--- a/net/libarcus/distinfo
+++ b/net/libarcus/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1600556808
-SHA256 (Ultimaker/Ultimaker-libArcus-4.7.1-6a68d7e0_GH0.tar.gz) = c7408c07b1cc79cb17a817b49cba5432a23159082e66efe58776022a31d7541a
-SIZE (Ultimaker/Ultimaker-libArcus-4.7.1-6a68d7e0_GH0.tar.gz) = 31948
+TIMESTAMP = 1610493107
+SHA256 (Ultimaker/Ultimaker-libArcus-4.8.0_GH0.tar.gz) = f5a7234506c89a36adccdab2a3c410a75aaaa9e7c7f9533db834881c59001677
+SIZE (Ultimaker/Ultimaker-libArcus-4.8.0_GH0.tar.gz) = 31906
diff --git a/net/libarcus/files/patch-CMakeLists.txt b/net/libarcus/files/patch-CMakeLists.txt
index 811f9f88ee3a..407cfa3893a5 100644
--- a/net/libarcus/files/patch-CMakeLists.txt
+++ b/net/libarcus/files/patch-CMakeLists.txt
@@ -1,6 +1,31 @@
---- CMakeLists.txt.orig	2020-10-11 05:33:17 UTC
+--- CMakeLists.txt.orig	2020-10-09 16:43:28 UTC
 +++ CMakeLists.txt
-@@ -94,7 +94,7 @@ endif()
+@@ -28,12 +28,21 @@ if(BUILD_PYTHON)
+     # However currently on our CI server it finds the wrong Python version and then doesn't find the headers.
+     find_package(PythonInterp 3.4 REQUIRED)
+     find_package(PythonLibs 3.4 REQUIRED)
+-
+-    find_package(SIP REQUIRED)
++if(NOT PYTHON_EXECUTABLE STREQUAL "")
++   set(Python3_EXECUTABLE ${PYTHON_EXECUTABLE})
++   message("Using given PYTHON_EXECUTABLE")
++endif()
++if(NOT PYTHON_INCLUDE_DIR STREQUAL "")
++    set(PYTHON_INCLUDE_DIR ${PYTHON_INCLUDE_DIR})
++   message("Using given PYTHON_INCLUDE_DIR")
++endif()
++find_package(SIP REQUIRED)
+     if(NOT DEFINED LIB_SUFFIX)
+         set(LIB_SUFFIX "")
+     endif()
+-
++if(NOT PYTHON_INCLUDEDIR STREQUAL "")
++    message("Setting Python3_INCLUDE_DIRS = ${PYTHON_INCLUDEDIR}")
++endif()
+     include_directories(python/ src/ ${SIP_INCLUDE_DIRS} ${Python3_INCLUDE_DIRS})
+ endif()
+ 
+@@ -88,7 +97,7 @@ endif()
  if(BUILD_PYTHON)
      set(SIP_EXTRA_FILES_DEPEND python/SocketListener.sip python/Types.sip python/PythonMessage.sip python/Error.sip)
      set(SIP_EXTRA_SOURCE_FILES python/PythonMessage.cpp)