diff --git a/Makefile b/Makefile
index 650346237c6..ec98633a65b 100644
--- a/Makefile
+++ b/Makefile
@@ -141,7 +141,7 @@ LIBS += -lrt
 endif
 endif
 
-YOSYS_VER := 0.40+25
+YOSYS_VER := 0.40+33
 
 # Note: We arrange for .gitcommit to contain the (short) commit hash in
 # tarballs generated with git-archive(1) using .gitattributes. The git repo
@@ -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 = 0cd90d0
+ABCREV = 03da96f
 ABCPULL = 1
 ABCURL ?= https://github.com/YosysHQ/abc
 ABCMKARGS = CC="$(CXX)" CXX="$(CXX)" ABC_USE_LIBSTDCXX=1 ABC_USE_NAMESPACE=abc VERBOSE=$(Q)