diff --git a/doc/source/install/centos.txt b/doc/source/install/centos.txt
index b3acdf1748..42b8a55ff7 100644
--- a/doc/source/install/centos.txt
+++ b/doc/source/install/centos.txt
@@ -153,9 +153,9 @@ Install required packages to build groonga::
 
 Download source::
 
-  % wget http://packages.groonga.org/source/groonga/groonga-3.0.2.tar.gz
-  % tar xvzf groonga-3.0.2.tar.gz
-  % cd groonga-3.0.2
+  % wget http://packages.groonga.org/source/groonga/groonga-3.0.3.tar.gz
+  % tar xvzf groonga-3.0.3.tar.gz
+  % cd groonga-3.0.3
 
 Configure (see :ref:`source-configure` about ``configure`` options)::
 
diff --git a/doc/source/install/debian.txt b/doc/source/install/debian.txt
index effed3d865..54a0cd461a 100644
--- a/doc/source/install/debian.txt
+++ b/doc/source/install/debian.txt
@@ -145,9 +145,9 @@ Install required packages to build groonga::
 
 Download source::
 
-  % wget http://packages.groonga.org/source/groonga/groonga-3.0.2.tar.gz
-  % tar xvzf groonga-3.0.2.tar.gz
-  % cd groonga-3.0.2
+  % wget http://packages.groonga.org/source/groonga/groonga-3.0.3.tar.gz
+  % tar xvzf groonga-3.0.3.tar.gz
+  % cd groonga-3.0.3
 
 Configure (see :ref:`source-configure` about ``configure`` options)::
 
diff --git a/doc/source/install/fedora.txt b/doc/source/install/fedora.txt
index 1328b5a9e2..05778a59be 100644
--- a/doc/source/install/fedora.txt
+++ b/doc/source/install/fedora.txt
@@ -75,9 +75,9 @@ Install required packages to build groonga::
 
 Download source::
 
-  % wget http://packages.groonga.org/source/groonga/groonga-3.0.2.tar.gz
-  % tar xvzf groonga-3.0.2.tar.gz
-  % cd groonga-3.0.2
+  % wget http://packages.groonga.org/source/groonga/groonga-3.0.3.tar.gz
+  % tar xvzf groonga-3.0.3.tar.gz
+  % cd groonga-3.0.3
 
 Configure (see :ref:`source-configure` about ``configure`` options)::
 
diff --git a/doc/source/install/mac_os_x.txt b/doc/source/install/mac_os_x.txt
index bfbe50b001..0d25277103 100644
--- a/doc/source/install/mac_os_x.txt
+++ b/doc/source/install/mac_os_x.txt
@@ -40,9 +40,9 @@ Install `Xcode <https://developer.apple.com/xcode/>`_.
 
 Download source::
 
-  % curl -O http://packages.groonga.org/source/groonga/groonga-3.0.2.tar.gz
-  % tar xvzf groonga-3.0.2.tar.gz
-  % cd groonga-3.0.2
+  % curl -O http://packages.groonga.org/source/groonga/groonga-3.0.3.tar.gz
+  % tar xvzf groonga-3.0.3.tar.gz
+  % cd groonga-3.0.3
 
 Configure (see :ref:`source-configure` about ``configure`` options)::
 
diff --git a/doc/source/install/others.txt b/doc/source/install/others.txt
index 9ac4300c0e..7f0cc9e0b5 100644
--- a/doc/source/install/others.txt
+++ b/doc/source/install/others.txt
@@ -74,9 +74,9 @@ Build from source
 Groonga uses GNU build system. So the following is the simplest build
 steps::
 
-  % wget http://packages.groonga.org/source/groonga/groonga-3.0.2.tar.gz
-  % tar xvzf groonga-3.0.2.tar.gz
-  % cd groonga-3.0.2
+  % wget http://packages.groonga.org/source/groonga/groonga-3.0.3.tar.gz
+  % tar xvzf groonga-3.0.3.tar.gz
+  % cd groonga-3.0.3
   % ./configure
   % make
   % sudo make install
diff --git a/doc/source/install/solaris.txt b/doc/source/install/solaris.txt
index cdd3b31021..0e43dde691 100644
--- a/doc/source/install/solaris.txt
+++ b/doc/source/install/solaris.txt
@@ -17,9 +17,9 @@ Install required packages to build groonga::
 
 Download source::
 
-  % wget http://packages.groonga.org/source/groonga/groonga-3.0.2.tar.gz
-  % gtar xvzf groonga-3.0.2.tar.gz
-  % cd groonga-3.0.2
+  % wget http://packages.groonga.org/source/groonga/groonga-3.0.3.tar.gz
+  % gtar xvzf groonga-3.0.3.tar.gz
+  % cd groonga-3.0.3
 
 Configure with ``CFLAGS="-m64" CXXFLAGS="-m64"`` variables. They are
 needed for building 64-bit version. To build 32-bit version, just
diff --git a/doc/source/install/ubuntu.txt b/doc/source/install/ubuntu.txt
index 2662224d08..a5fce5c27b 100644
--- a/doc/source/install/ubuntu.txt
+++ b/doc/source/install/ubuntu.txt
@@ -213,9 +213,9 @@ Install required packages to build groonga::
 
 Download source::
 
-  % wget http://packages.groonga.org/source/groonga/groonga-3.0.2.tar.gz
-  % tar xvzf groonga-3.0.2.tar.gz
-  % cd groonga-3.0.2
+  % wget http://packages.groonga.org/source/groonga/groonga-3.0.3.tar.gz
+  % tar xvzf groonga-3.0.3.tar.gz
+  % cd groonga-3.0.3
 
 Configure (see :ref:`source-configure` about ``configure`` options)::
 
diff --git a/doc/source/install/windows.txt b/doc/source/install/windows.txt
index 3c1976cc8a..f4bf817309 100644
--- a/doc/source/install/windows.txt
+++ b/doc/source/install/windows.txt
@@ -23,7 +23,7 @@ You can download such a binary by command line operation.
 
 Start command prompt ``cmd.exe`` and download x86 executable binary by default browser::
 
-  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.2-x86.exe
+  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.3-x86.exe
 
 Then run it.
 
@@ -32,7 +32,7 @@ For 64-bit environment, download x64 executable binary from packages.groonga.org
 
 Start command prompt ``cmd.exe`` and download x64 executable binary by default browser::
 
-  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.2-x64.exe
+  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.3-x64.exe
 
 Then run it.
 
@@ -47,7 +47,7 @@ You can download such a binary by command line operation.
 
 Start command prompt ``cmd.exe`` and download x86 zip archive by default browser::
 
-  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.2-x86.zip
+  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.3-x86.zip
 
 Then extract it.
 
@@ -55,7 +55,7 @@ For 64-bit environment, download x64 zip archive from packages.groonga.org.
 
 Start command prompt ``cmd.exe`` and download x64 zip archive by default browser::
 
-  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.2-x64.zip
+  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/windows/groonga/groonga-3.0.3-x64.zip
 
 Then extract it.
 
@@ -79,37 +79,37 @@ Start ``Visual Studio Command Prompt (2010)`` installed by Microsoft
 Visual Studio 2010 Express and download it by default browser::
 
   > cd c:\Users\%USERNAME%\Downloads
-  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/source/groonga/groonga-3.0.2.zip
+  > "c:\\Program Files\\Internet Explorer\\iexplore.exe" http://packages.groonga.org/source/groonga/groonga-3.0.3.zip
 
 Then extract it.
 
 Move to the groonga's source folder::
 
-  > cd c:\Users\%USERNAME%\Downloads\groonga-3.0.2
+  > cd c:\Users\%USERNAME%\Downloads\groonga-3.0.3
 
 Configure by ``cmake``. The following commnad line is for 64-bit
 version. To build 32-bit version, use ``-G "Visual Studio 10"``
 parameter instead::
 
-  groonga-3.0.2> cmake . -G "Visual Studio 10 Win64" -DCMAKE_INSTALL_PREFIX=C:\groonga
+  groonga-3.0.3> cmake . -G "Visual Studio 10 Win64" -DCMAKE_INSTALL_PREFIX=C:\groonga
 
 Build by Visual C++ 2010 Express::
 
-  groonga-3.0.2> msbuild groonga.sln /p:Configuration=Release
+  groonga-3.0.3> msbuild groonga.sln /p:Configuration=Release
 
 Install by Visual C++ 2010 Express::
 
-  groonga-3.0.2> msbuild groonga.sln /p:Configuration=Release /t:Install
+  groonga-3.0.3> msbuild groonga.sln /p:Configuration=Release /t:Install
 
 If you installed Visual Studio 2010, use can use devenv instead.
 
 Build by Visual Studio 2010::
 
-  groonga-3.0.2> devenv groonga.sln /Build Release
+  groonga-3.0.3> devenv groonga.sln /Build Release
 
 Install by Visual Studio 2010::
 
-  groonga-3.0.2> devenv groonga.sln /Build Release /Project Install
+  groonga-3.0.3> devenv groonga.sln /Build Release /Project Install
 
 After the above steps, :doc:`/reference/executables/groonga` is found in
 ``c:\groonga\bin\groonga.exe``.