diff --git a/M2/cmake/build-libraries.cmake b/M2/cmake/build-libraries.cmake
index 087f8e783b7..3327b265d2e 100644
--- a/M2/cmake/build-libraries.cmake
+++ b/M2/cmake/build-libraries.cmake
@@ -823,12 +823,13 @@ set(4ti2_PROGRAMS
   qsolve rays walk zbasis zsolve hilbert graver ppi genmodel gensymm output)
 list(TRANSFORM 4ti2_PROGRAMS PREPEND ${M2_HOST_PREFIX}/bin/ OUTPUT_VARIABLE 4ti2_PROGRAMS)
 ExternalProject_Add(build-4ti2
-  URL               https://github.com/4ti2/4ti2/releases/download/Release_1_6_9/4ti2-1.6.9.tar.gz
-  URL_HASH          SHA256=3053e7467b5585ad852f6a56e78e28352653943e7249ad5e5174d4744d174966
+  URL               https://github.com/4ti2/4ti2/releases/download/Release_1_6_10/4ti2-1.6.10.tar.gz
+  URL_HASH          SHA256=f7c191beb14246b643e4fd5b18b53d9966693b9e6d3a569441a0e3ca14b1a86b
   PREFIX            libraries/4ti2
   SOURCE_DIR        libraries/4ti2/build
   DOWNLOAD_DIR      ${CMAKE_SOURCE_DIR}/BUILD/tarfiles
   BUILD_IN_SOURCE   ON
+  PATCH_COMMAND     mkdir swig # needed because the tar doesn't have a swig directory but 4ti2's Makefile.am seems to need it
   CONFIGURE_COMMAND autoreconf -vif
             COMMAND ${CONFIGURE} --prefix=${M2_HOST_PREFIX}
                       #-C --cache-file=${CONFIGURE_CACHE}
diff --git a/M2/libraries/4ti2/Makefile.in b/M2/libraries/4ti2/Makefile.in
index 0d54c3f6b90..8107fe464c0 100644
--- a/M2/libraries/4ti2/Makefile.in
+++ b/M2/libraries/4ti2/Makefile.in
@@ -1,13 +1,12 @@
 # temporary beta testing version
-VERSION = 1.6.9
+VERSION = 1.6.10
 TARDIR = 4ti2-$(VERSION)
 
 # PATCHFILE = @abs_srcdir@/patch-$(VERSION)
-PRECONFIGURE = autoreconf -vif
+PRECONFIGURE = mkdir -p swig && autoreconf -vif
 
-# URL = http://www.4ti2.de/version_$(VERSION)
-# URL = https://github.com/4ti2/4ti2/releases/download/Release_1_6_9/4ti2-1.6.9.tar.gz
-URL = http://macaulay2.com/Downloads/OtherSourceCode
+VERSION_ = $(shell echo $(VERSION) | sed 's/\./_/g')
+URL = https://github.com/4ti2/4ti2/releases/download/Release_$(VERSION_)
 
 ifeq (@ENABLE_STRIP@,yes)
 INSTALLTARGET = install-strip