diff --git a/Makefile b/Makefile
index 60643e912..1443f3c4a 100644
--- a/Makefile
+++ b/Makefile
@@ -154,7 +154,7 @@ ifeq ($(OS), Haiku)
 CXXFLAGS += -D_DEFAULT_SOURCE
 endif
 
-YOSYS_VER := 0.55+46
+YOSYS_VER := 0.55+109
 YOSYS_MAJOR := $(shell echo $(YOSYS_VER) | cut -d'.' -f1)
 YOSYS_MINOR := $(shell echo $(YOSYS_VER) | cut -d'.' -f2 | cut -d'+' -f1)
 YOSYS_COMMIT := $(shell echo $(YOSYS_VER) | cut -d'+' -f2)