diff --git a/README b/README
index a90fda0f..5831311a 100644
--- a/README
+++ b/README
@@ -4,7 +4,7 @@
           \__\__/\____/\_____/__/ ____  ___
                 / _/ /    \    \ /  _ \/ _/
                /  \_/   / /   \ \   __/  \__
-               \____/____/\_____/_____/____/v0.2.0
+               \____/____/\_____/_____/____/v0.2.1
 
 Description:
 ============
diff --git a/configure.ac b/configure.ac
index d81c4c98..f6d39bbc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([libwebp], [0.2.0],
+AC_INIT([libwebp], [0.2.1],
         [http://code.google.com/p/webp/issues],,
         [http://developers.google.com/speed/webp])
 AC_CANONICAL_TARGET
diff --git a/src/Makefile.am b/src/Makefile.am
index 3979535f..99f7f945 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -24,7 +24,7 @@ libwebp_la_LIBADD += utils/libwebputils.la
 # other than the ones listed on the command line, i.e., after linking, it will
 # not have unresolved symbols. Some platforms (Windows among them) require all
 # symbols in shared libraries to be resolved at library creation.
-libwebp_la_LDFLAGS = -no-undefined -version-info 4:0:0
+libwebp_la_LDFLAGS = -no-undefined -version-info 4:1:0
 libwebpincludedir = $(includedir)/webp
 
 pkgconfig_DATA = libwebp.pc
diff --git a/src/dec/vp8i.h b/src/dec/vp8i.h
index 4382edfd..6e27456f 100644
--- a/src/dec/vp8i.h
+++ b/src/dec/vp8i.h
@@ -28,7 +28,7 @@ extern "C" {
 // version numbers
 #define DEC_MAJ_VERSION 0
 #define DEC_MIN_VERSION 2
-#define DEC_REV_VERSION 0
+#define DEC_REV_VERSION 1
 
 #define ONLY_KEYFRAME_CODE      // to remove any code related to P-Frames
 
diff --git a/src/enc/vp8enci.h b/src/enc/vp8enci.h
index a77778c0..f660eeec 100644
--- a/src/enc/vp8enci.h
+++ b/src/enc/vp8enci.h
@@ -27,7 +27,7 @@ extern "C" {
 // version numbers
 #define ENC_MAJ_VERSION 0
 #define ENC_MIN_VERSION 2
-#define ENC_REV_VERSION 0
+#define ENC_REV_VERSION 1
 
 // size of histogram used by CollectHistogram.
 #define MAX_COEFF_THRESH   64