diff --git a/Makefile b/Makefile
index 9474d37a19d..c3fc4145837 100644
--- a/Makefile
+++ b/Makefile
@@ -165,7 +165,7 @@ bumpversion:
 # is just a symlink to your actual ABC working directory, as 'make mrproper'
 # will remove the 'abc' directory and you do not want to accidentally
 # delete your work on ABC..
-ABCREV = bb64142
+ABCREV = 9537f39
 ABCPULL = 1
 ABCURL ?= https://github.com/YosysHQ/abc
 ABCMKARGS = CC="$(CXX)" CXX="$(CXX)" ABC_USE_LIBSTDCXX=1 ABC_USE_NAMESPACE=abc VERBOSE=$(Q)