diff --git a/src/libFLAC++/Makefile.am b/src/libFLAC++/Makefile.am
index 1aa2fed9..9482c311 100644
--- a/src/libFLAC++/Makefile.am
+++ b/src/libFLAC++/Makefile.am
@@ -29,7 +29,7 @@ EXTRA_DIST = \
 	libFLAC++.m4
 
 # see 'http://www.gnu.org/software/libtool/manual.html#Versioning' for numbering convention
-libFLAC___la_LDFLAGS = -version-info 3:1:1
+libFLAC___la_LDFLAGS = -version-info 3:2:1
 
 libFLAC___la_SOURCES = \
 	file_decoder.cpp \
diff --git a/src/libFLAC/Makefile.am b/src/libFLAC/Makefile.am
index 29f96b74..38a5956d 100644
--- a/src/libFLAC/Makefile.am
+++ b/src/libFLAC/Makefile.am
@@ -44,7 +44,7 @@ EXTRA_DIST = \
 	libFLAC.m4
 
 # see 'http://www.gnu.org/software/libtool/manual.html#Versioning' for numbering convention
-libFLAC_la_LDFLAGS = -version-info 5:1:1
+libFLAC_la_LDFLAGS = -version-info 5:2:1
 
 libFLAC_la_SOURCES = \
 	bitbuffer.c \
diff --git a/src/libOggFLAC++/Makefile.am b/src/libOggFLAC++/Makefile.am
index 55077abb..c12c1f93 100644
--- a/src/libOggFLAC++/Makefile.am
+++ b/src/libOggFLAC++/Makefile.am
@@ -29,7 +29,7 @@ EXTRA_DIST = \
 	libOggFLAC++.m4
 
 # see 'http://www.gnu.org/software/libtool/manual.html#Versioning' for numbering convention
-libOggFLAC___la_LDFLAGS = -version-info 0:3:0
+libOggFLAC___la_LDFLAGS = -version-info 0:4:0
 
 libOggFLAC___la_SOURCES = \
 	stream_decoder.cpp \
diff --git a/src/libOggFLAC/Makefile.am b/src/libOggFLAC/Makefile.am
index 8e248c68..4fe443b3 100644
--- a/src/libOggFLAC/Makefile.am
+++ b/src/libOggFLAC/Makefile.am
@@ -35,7 +35,7 @@ EXTRA_DIST = \
 
 libOggFLAC_la_LIBADD = @OGG_LIBS@
 # see 'http://www.gnu.org/software/libtool/manual.html#Versioning' for numbering convention
-libOggFLAC_la_LDFLAGS = -version-info 1:1:0
+libOggFLAC_la_LDFLAGS = -version-info 1:2:0
 
 libOggFLAC_la_SOURCES = \
 	stream_decoder.c \