diff --git a/tools/libfsimage/common/Makefile b/tools/libfsimage/common/Makefile
index b9fb15fcadba..7752b55bcbfa 100644
--- a/tools/libfsimage/common/Makefile
+++ b/tools/libfsimage/common/Makefile
@@ -1,7 +1,7 @@
 XEN_ROOT = $(CURDIR)/../../..
 include $(XEN_ROOT)/tools/libfsimage/Rules.mk
 
-MAJOR = 4.12
+MAJOR = 4.13
 MINOR = 0
 
 LDFLAGS-$(CONFIG_SunOS) = -Wl,-M -Wl,mapfile-SunOS
diff --git a/tools/libvchan/Makefile b/tools/libvchan/Makefile
index de9b44978ff9..f5f35bba95d7 100644
--- a/tools/libvchan/Makefile
+++ b/tools/libvchan/Makefile
@@ -14,7 +14,7 @@ LIBVCHAN_LIBS = $(LDLIBS_libxenstore) $(LDLIBS_libxengnttab) $(LDLIBS_libxenevtc
 $(LIBVCHAN_OBJS) $(LIBVCHAN_PIC_OBJS): CFLAGS += $(CFLAGS_libxenstore) $(CFLAGS_libxengnttab) $(CFLAGS_libxenevtchn)
 $(NODE_OBJS) $(NODE2_OBJS): CFLAGS += $(CFLAGS_libxengnttab) $(CFLAGS_libxenevtchn)
 
-MAJOR = 4.12
+MAJOR = 4.13
 MINOR = 0
 
 CFLAGS += -I../include -I.
diff --git a/tools/libxc/Makefile b/tools/libxc/Makefile
index 44d9d09d4e40..668cbce0f861 100644
--- a/tools/libxc/Makefile
+++ b/tools/libxc/Makefile
@@ -1,7 +1,7 @@
 XEN_ROOT = $(CURDIR)/../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-MAJOR    = 4.12
+MAJOR    = 4.13
 MINOR    = 0
 
 ifeq ($(CONFIG_LIBXC_MINIOS),y)
diff --git a/tools/libxl/Makefile b/tools/libxl/Makefile
index 6da342ed61ee..5015ecbf2737 100644
--- a/tools/libxl/Makefile
+++ b/tools/libxl/Makefile
@@ -5,10 +5,10 @@
 XEN_ROOT = $(CURDIR)/../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-MAJOR = 4.12
+MAJOR = 4.13
 MINOR = 0
 
-XLUMAJOR = 4.12
+XLUMAJOR = 4.13
 XLUMINOR = 0
 
 CFLAGS += -Werror -Wno-format-zero-length -Wmissing-declarations \
diff --git a/tools/xenstat/libxenstat/Makefile b/tools/xenstat/libxenstat/Makefile
index eb88085933e1..58f9d63de54c 100644
--- a/tools/xenstat/libxenstat/Makefile
+++ b/tools/xenstat/libxenstat/Makefile
@@ -18,7 +18,7 @@ include $(XEN_ROOT)/tools/Rules.mk
 LDCONFIG=ldconfig
 MAKE_LINK=ln -sf
 
-MAJOR=4.12
+MAJOR=4.13
 MINOR=0
 
 LIB=src/libxenstat.a