diff --git a/M2/cmake/build-libraries.cmake b/M2/cmake/build-libraries.cmake
index 6d9d3bdfeea..f14b294c376 100644
--- a/M2/cmake/build-libraries.cmake
+++ b/M2/cmake/build-libraries.cmake
@@ -772,8 +772,8 @@ 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_13/4ti2-1.6.13.tar.gz
-  URL_HASH          SHA256=f59e1ea5563d2188b0e8ff61a8584845a899e3e54a570305f6f99b26c9b1e6b5
+  URL               https://github.com/4ti2/4ti2/releases/download/Release_1_6_14/4ti2-1.6.14.tar.gz
+  URL_HASH          SHA256=1bc340173f93ca4abd30ea962118bd5057fdedf7e79c71d2a0c4cc9569f8b0b1
   PREFIX            libraries/4ti2
   SOURCE_DIR        libraries/4ti2/build
   DOWNLOAD_DIR      ${CMAKE_SOURCE_DIR}/BUILD/tarfiles
diff --git a/M2/libraries/4ti2/Makefile.in b/M2/libraries/4ti2/Makefile.in
index 27171dbd039..34402399959 100644
--- a/M2/libraries/4ti2/Makefile.in
+++ b/M2/libraries/4ti2/Makefile.in
@@ -1,11 +1,10 @@
-# temporary beta testing version
-VERSION = 1.6.13
+VERSION = 1.6.14
 TARDIR = 4ti2-$(VERSION)
 
 # PATCHFILE = @abs_srcdir@/patch-$(VERSION)
 PRECONFIGURE = autoreconf -vif
 
-VERSION_ = $(shell echo $(VERSION) | sed 's/\./_/g')
+VERSION_ = $(subst .,_,$(VERSION))
 URL = https://github.com/4ti2/4ti2/releases/download/Release_$(VERSION_)
 
 ifeq (@ENABLE_STRIP@,yes)