Update library version number
diff --git a/src/Makefile.am b/src/Makefile.am
index 17fdbf6..73b6854 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -5,7 +5,7 @@
 lib_LTLIBRARIES = libbluetooth.la libsdp.la
 
 libbluetooth_la_SOURCES = bluetooth.c hci.c sdp.c
-libbluetooth_la_LDFLAGS = -version-info 1:4:0
+libbluetooth_la_LDFLAGS = -version-info 1:7:0
 
 libsdp_la_SOURCES =
 libsdp_la_LDFLAGS = -version-info 2:2:0