diff --git a/common/shlibs b/common/shlibs
index 5dfbc6f18e4..82a77c33de2 100644
--- a/common/shlibs
+++ b/common/shlibs
@@ -3457,67 +3457,79 @@ libvtkkissfft-9.3.so.1 vtk-9.3.0_1
 libvolume_key.so.1 volume_key-0.3.9_1
 libxxhash.so.0 libxxHash-0.6.5_2
 libcapnp_c.so.0 c-capnproto-0.3_1
-libTKernel.so.7.7 occt-7.7.1_1
-libTKXmlXCAF.so.7.7 occt-7.7.1_1
-libTKXmlTObj.so.7.7 occt-7.7.1_1
-libTKXmlL.so.7.7 occt-7.7.1_1
-libTKXml.so.7.7 occt-7.7.1_1
-libTKXSDRAW.so.7.7 occt-7.7.1_1
-libTKXSBase.so.7.7 occt-7.7.1_1
-libTKXMesh.so.7.7 occt-7.7.1_1
-libTKXDESTEP.so.7.7 occt-7.7.1_1
-libTKXDEIGES.so.7.7 occt-7.7.1_1
-libTKXDEDRAW.so.7.7 occt-7.7.1_1
-libTKXDECascade.so.7.7 occt-7.7.1_1
-libTKXDE.so.7.7 occt-7.7.1_1
-libTKXCAF.so.7.7 occt-7.7.1_1
-libTKViewerTest.so.7.7 occt-7.7.1_1
-libTKVRML.so.7.7 occt-7.7.1_1
-libTKVCAF.so.7.7 occt-7.7.1_1
-libTKV3d.so.7.7 occt-7.7.1_1
-libTKTopTest.so.7.7 occt-7.7.1_1
-libTKTopAlgo.so.7.7 occt-7.7.1_1
-libTKTObjDRAW.so.7.7 occt-7.7.1_1
-libTKTObj.so.7.7 occt-7.7.1_1
-libTKStdL.so.7.7 occt-7.7.1_1
-libTKStd.so.7.7 occt-7.7.1_1
-libTKShHealing.so.7.7 occt-7.7.1_1
-libTKService.so.7.7 occt-7.7.1_1
-libTKSTL.so.7.7 occt-7.7.1_1
-libTKSTEPBase.so.7.7 occt-7.7.1_1
-libTKSTEPAttr.so.7.7 occt-7.7.1_1
-libTKSTEP209.so.7.7 occt-7.7.1_1
-libTKSTEP.so.7.7 occt-7.7.1_1
-libTKRWMesh.so.7.7 occt-7.7.1_1
-libTKQADraw.so.7.7 occt-7.7.1_1
-libTKPrim.so.7.7 occt-7.7.1_1
-libTKOpenGlTest.so.7.7 occt-7.7.1_1
-libTKOpenGl.so.7.7 occt-7.7.1_1
-libTKOffset.so.7.7 occt-7.7.1_1
-libTKMeshVS.so.7.7 occt-7.7.1_1
-libTKMesh.so.7.7 occt-7.7.1_1
-libTKMath.so.7.7 occt-7.7.1_1
-libTKLCAF.so.7.7 occt-7.7.1_1
-libTKIGES.so.7.7 occt-7.7.1_1
-libTKHLR.so.7.7 occt-7.7.1_1
-libTKGeomBase.so.7.7 occt-7.7.1_1
-libTKGeomAlgo.so.7.7 occt-7.7.1_1
-libTKG3d.so.7.7 occt-7.7.1_1
-libTKG2d.so.7.7 occt-7.7.1_1
-libTKFillet.so.7.7 occt-7.7.1_1
-libTKFeat.so.7.7 occt-7.7.1_1
-libTKExpress.so.7.7 occt-7.7.1_1
-libTKDraw.so.7.7 occt-7.7.1_1
-libTKDCAF.so.7.7 occt-7.7.1_1
-libTKCDF.so.7.7 occt-7.7.1_1
-libTKCAF.so.7.7 occt-7.7.1_1
-libTKBool.so.7.7 occt-7.7.1_1
-libTKBinXCAF.so.7.7 occt-7.7.1_1
-libTKBinTObj.so.7.7 occt-7.7.1_1
-libTKBinL.so.7.7 occt-7.7.1_1
-libTKBin.so.7.7 occt-7.7.1_1
-libTKBRep.so.7.7 occt-7.7.1_1
-libTKBO.so.7.7 occt-7.7.1_1
+libTKernel.so.7.9 occt-7.9.1_1
+libTKXmlXCAF.so.7.9 occt-7.9.1_1
+libTKXmlTObj.so.7.9 occt-7.9.1_1
+libTKXmlL.so.7.9 occt-7.9.1_1
+libTKXml.so.7.9 occt-7.9.1_1
+libTKXSDRAW.so.7.9 occt-7.9.1_1
+libTKXSDRAW.so.7.9 occt-7.9.1_1
+libTKXSDRAWDE.so.7.9 occt-7.9.1_1
+libTKXSDRAWGLTF.so.7.9 occt-7.9.1_1
+libTKXSDRAWIGES.so.7.9 occt-7.9.1_1
+libTKXSDRAWOBJ.so.7.9 occt-7.9.1_1
+libTKXSDRAWPLY.so.7.9 occt-7.9.1_1
+libTKXSDRAWSTEP.so.7.9 occt-7.9.1_1
+libTKXSDRAWSTL.so.7.9 occt-7.9.1_1
+libTKXSBase.so.7.9 occt-7.9.1_1
+libTKDEIGES.so.7.9 occt-7.9.1_1
+libTKDEGLTF.so.7.9 occt-7.9.1_1
+libTKDESTEP.so.7.9 occt-7.9.1_1
+libTKDESTL.so.7.9 occt-7.9.1_1
+libTKDEVRML.so.7.9 occt-7.9.1_1
+libTKDEPLY.so.7.9 occt-7.9.1_1
+libTKDEOBJ.so.7.9 occt-7.9.1_1
+libTKXMesh.so.7.9 occt-7.9.1_1
+libTKXDEDRAW.so.7.9 occt-7.9.1_1
+libTKDECascade.so occt-7.9.1_1
+libTKDE.so.7.9 occt-7.9.1_1
+libTKXCAF.so.7.9 occt-7.9.1_1
+libTKViewerTest.so.7.9 occt-7.9.1_1
+libTKVRML.so.7.9 occt-7.9.1_1
+libTKVCAF.so.7.9 occt-7.9.1_1
+libTKV3d.so.7.9 occt-7.9.1_1
+libTKTopTest.so.7.9 occt-7.9.1_1
+libTKTopAlgo.so.7.9 occt-7.9.1_1
+libTKTObjDRAW.so.7.9 occt-7.9.1_1
+libTKTObj.so.7.9 occt-7.9.1_1
+libTKStdL.so.7.9 occt-7.9.1_1
+libTKStd.so.7.9 occt-7.9.1_1
+libTKShHealing.so.7.9 occt-7.9.1_1
+libTKService.so.7.9 occt-7.9.1_1
+libTKSTL.so.7.9 occt-7.9.1_1
+libTKSTEPBase.so.7.9 occt-7.9.1_1
+libTKSTEPAttr.so.7.9 occt-7.9.1_1
+libTKSTEP209.so.7.9 occt-7.9.1_1
+libTKSTEP.so.7.9 occt-7.9.1_1
+libTKRWMesh.so.7.9 occt-7.9.1_1
+libTKQADraw.so.7.9 occt-7.9.1_1
+libTKPrim.so.7.9 occt-7.9.1_1
+libTKOpenGlTest.so.7.9 occt-7.9.1_1
+libTKOpenGl.so.7.9 occt-7.9.1_1
+libTKOffset.so.7.9 occt-7.9.1_1
+libTKMeshVS.so.7.9 occt-7.9.1_1
+libTKMesh.so.7.9 occt-7.9.1_1
+libTKMath.so.7.9 occt-7.9.1_1
+libTKLCAF.so.7.9 occt-7.9.1_1
+libTKHLR.so.7.9 occt-7.9.1_1
+libTKGeomBase.so.7.9 occt-7.9.1_1
+libTKGeomAlgo.so.7.9 occt-7.9.1_1
+libTKG3d.so.7.9 occt-7.9.1_1
+libTKG2d.so.7.9 occt-7.9.1_1
+libTKFillet.so.7.9 occt-7.9.1_1
+libTKFeat.so.7.9 occt-7.9.1_1
+libTKExpress.so.7.9 occt-7.9.1_1
+libTKDraw.so.7.9 occt-7.9.1_1
+libTKDCAF.so.7.9 occt-7.9.1_1
+libTKCDF.so.7.9 occt-7.9.1_1
+libTKCAF.so.7.9 occt-7.9.1_1
+libTKBool.so.7.9 occt-7.9.1_1
+libTKBinXCAF.so.7.9 occt-7.9.1_1
+libTKBinTObj.so.7.9 occt-7.9.1_1
+libTKBinL.so.7.9 occt-7.9.1_1
+libTKBin.so.7.9 occt-7.9.1_1
+libTKBRep.so.7.9 occt-7.9.1_1
+libTKBO.so.7.9 occt-7.9.1_1
 libargon2.so.1 libargon2-20171227_1
 libdazzle-1.0.so.0 libdazzle-3.28.0_1
 libjsonrpc-glib-1.0.so.1 jsonrpc-glib-3.28.0_1
diff --git a/srcpkgs/occt/patches/fix-cmake-regex.patch b/srcpkgs/occt/patches/fix-cmake-regex.patch
deleted file mode 100644
index f38e0108ac7..00000000000
--- a/srcpkgs/occt/patches/fix-cmake-regex.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-# fix regex for cmake Config file
-# inspired by https://git.archlinux.org/svntogit/community.git/commit/trunk/cmake-fix-variable.patch?h=packages/opencascade&id=c99074d88da40ae59882aaf173de94cd0ec73ca7
-
---- a/adm/templates/OpenCASCADEConfig.cmake.in	2019-01-27 00:18:42.763819658 -0500
-+++ b/adm/templates/OpenCASCADEConfig.cmake.in	2019-01-27 23:40:32.872489521 -0500
-@@ -26,7 +26,7 @@
- if (OpenCASCADE_INSTALL_PREFIX MATCHES "/cmake$")
-   get_filename_component (OpenCASCADE_INSTALL_PREFIX "${OpenCASCADE_INSTALL_PREFIX}" PATH)
- endif()
--if (OpenCASCADE_INSTALL_PREFIX MATCHES "/lib$")
-+if (OpenCASCADE_INSTALL_PREFIX MATCHES "/lib(32|64)?$")
-   get_filename_component (OpenCASCADE_INSTALL_PREFIX "${OpenCASCADE_INSTALL_PREFIX}" PATH)
- endif()
- 
diff --git a/srcpkgs/occt/patches/fix-install-dir.patch b/srcpkgs/occt/patches/fix-install-dir.patch
deleted file mode 100644
index 931587bef99..00000000000
--- a/srcpkgs/occt/patches/fix-install-dir.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff --color -upr occt-7.7.1.orig/adm/cmake/occt_macros.cmake occt-7.7.1/adm/cmake/occt_macros.cmake
---- occt-7.7.1.orig/adm/cmake/occt_macros.cmake	2023-05-31 20:05:47.619869450 +0200
-+++ occt-7.7.1/adm/cmake/occt_macros.cmake	2023-05-31 20:07:25.611036417 +0200
-@@ -592,7 +592,7 @@ macro (OCCT_UPDATE_TARGET_FILE)
- 
-   install (CODE
-   "string (TOLOWER \"\${CMAKE_INSTALL_CONFIG_NAME}\" CMAKE_INSTALL_CONFIG_NAME_LOWERCASE)
--  file (GLOB ALL_OCCT_TARGET_FILES \"${INSTALL_DIR}/${INSTALL_DIR_CMAKE}/OpenCASCADE*Targets-\${CMAKE_INSTALL_CONFIG_NAME_LOWERCASE}.cmake\")
-+  file (GLOB ALL_OCCT_TARGET_FILES \"\$ENV{DESTDIR}${INSTALL_DIR}/${INSTALL_DIR_CMAKE}/OpenCASCADE*Targets-\${CMAKE_INSTALL_CONFIG_NAME_LOWERCASE}.cmake\")
-   foreach(TARGET_FILENAME \${ALL_OCCT_TARGET_FILES})
-     file (STRINGS \"\${TARGET_FILENAME}\" TARGET_FILE_CONTENT)
-     file (REMOVE \"\${TARGET_FILENAME}\")
diff --git a/srcpkgs/occt/patches/fix-osd-host.patch b/srcpkgs/occt/patches/fix-osd-host.patch
deleted file mode 100644
index ef705c72913..00000000000
--- a/srcpkgs/occt/patches/fix-osd-host.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-# gethostbyname returns a nullptr, because the host can't resolve itself
-
---- a/src/OSD/OSD_Host.cxx
-+++ b/src/OSD/OSD_Host.cxx
-@@ -124,7 +124,7 @@ TCollection_AsciiString OSD_Host::InternetAddress(){
- 
-  host = HostName();
-  memcpy(&internet_address,
--        gethostbyname(host.ToCString()),
-+        gethostbyname("localhost"),
-         sizeof(struct hostent));
- 
-  // Gets each bytes into integers
diff --git a/srcpkgs/occt/patches/musl-fenv.patch b/srcpkgs/occt/patches/musl-fenv.patch
deleted file mode 100644
index a8a776ce29a..00000000000
--- a/srcpkgs/occt/patches/musl-fenv.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-As stated by srcpkgs/flightgear/patches/musl-fenv.patch:
-"""
-Simply disabling the code which enables floating point exceptions
-is probably wrong, but I don't have a replacement for the
-non-posix functions fegetexcept(3) and feenableexcept(3).
-"""
-
---- a/src/OSD/OSD_signal.cxx.orig	2022-07-22 10:53:38.000000000 +0200
-+++ b/src/OSD/OSD_signal.cxx	2022-10-06 09:19:02.286414340 +0200
-@@ -761,7 +761,7 @@ typedef void (* SIG_PFV) (int);
- 
- #include <signal.h>
- 
--#if !defined(__ANDROID__) && !defined(__QNX__) && !defined(__EMSCRIPTEN__)
-+#if !defined(__ANDROID__) && !defined(__QNX__) && !defined(__EMSCRIPTEN__) &&  defined(__GLIBC__)
-   #include <sys/signal.h>
- #endif
- 
-@@ -977,7 +977,7 @@ static void SegvHandler(const int theSig
- //=======================================================================
- void OSD::SetFloatingSignal (Standard_Boolean theFloatingSignal)
- {
--#if defined (__linux__)
-+#if defined (__linux__) && defined(__GLIBC__)
-   feclearexcept (FE_ALL_EXCEPT);
-   if (theFloatingSignal)
-   {
-@@ -1010,7 +1010,7 @@ void OSD::SetFloatingSignal (Standard_Bo
- //=======================================================================
- Standard_Boolean OSD::ToCatchFloatingSignals()
- {
--#if defined (__linux__)
-+#if defined (__linux__) && defined(__GLIBC__)
-   return (fegetexcept() & _OSD_FPX) != 0;
- #else
-   return Standard_False;
diff --git a/srcpkgs/occt/patches/musl-mallinfo.patch b/srcpkgs/occt/patches/musl-mallinfo.patch
deleted file mode 100644
index 1ce5b16b793..00000000000
--- a/srcpkgs/occt/patches/musl-mallinfo.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-In musl libc there is no struct mallinfo and no function mallinf()
-
---- a/src/OSD/OSD_MemInfo.cxx.orig	2022-10-06 09:21:55.466236104 +0200
-+++ b/src/OSD/OSD_MemInfo.cxx	2022-10-06 09:25:34.105323581 +0200
-@@ -188,12 +188,16 @@ void OSD_MemInfo::Update()
-     #endif
-   #endif
- 
-+  #if defined(__GLIBC__)
-   #ifdef HAS_MALLINFO2
-     const struct mallinfo2 aMI = mallinfo2();
-   #else
-     const struct mallinfo aMI = mallinfo();
-   #endif
-     myCounters[MemHeapUsage] = aMI.uordblks;
-+  #else
-+    myCounters[MemHeapUsage] = 0;
-+  #endif
-   }
- 
-   if (!IsActive (MemVirtual)
diff --git a/srcpkgs/occt/template b/srcpkgs/occt/template
index 296a52de5a1..c466539def6 100644
--- a/srcpkgs/occt/template
+++ b/srcpkgs/occt/template
@@ -1,14 +1,11 @@
 # Template file for 'occt'
 pkgname=occt
-version=7.7.1
+version=7.9.1
 revision=1
 _gittag="V${version//./_}"
 build_style=cmake
-# XXX: re-enable -DUSE_TBB=ON if possible when updating
-configure_args="-DUSE_FREEIMAGE=ON -DUSE_GL2PS=ON -DUSE_VTK=OFF
- -DINSTALL_SAMPLES=ON"
-makedepends="freetype-devel glu-devel freeimage-devel gl2ps-devel tcl-devel
- tk-devel"
+configure_args="-DUSE_FREEIMAGE=ON -DUSE_VTK=OFF -DINSTALL_SAMPLES=ON -DUSE_TBB=ON"
+makedepends="freetype-devel glu-devel freeimage-devel tcl-devel tk-devel tbb-devel"
 short_desc="OpenCASCADE Technology - library for CAD/CAM/CAE applications"
 maintainer="Piraty <mail@piraty.dev>"
 license="custom:LGPL-2.1-only-with-exceptions"
@@ -16,7 +13,7 @@ homepage="https://www.opencascade.com"
 # distfile: use git instead of official tarball, which requires registration
 # see https://www.opencascade.com/content/packaging-again-debian
 distfiles="https://git.dev.opencascade.org/gitweb/?p=occt.git;a=snapshot;h=refs/tags/${_gittag};sf=tgz>occt-${_gittag}.tar.gz"
-checksum=f413d30a8a06d6164e94860a652cbc96ea58fe262df36ce4eaa92a9e3561fd12
+checksum=e70b8c08c74f9693cbc91baa48610f1f5448ad167425fb8b957cf5a8f2cafed5
 conflicts="oce>=0"
 if [ "$XBPS_TARGET_LIBC" = musl ]; then
 	makedepends+=" libexecinfo-devel"