diff --git a/help/plugin/Text/index.html b/help/plugin/Text/index.html
index 9b350f095f..798da0924e 100644
--- a/help/plugin/Text/index.html
+++ b/help/plugin/Text/index.html
@@ -17,7 +17,7 @@
 <center><hr width = "350px"></center>
 <center>�T�N���G�f�B�^ �v���O�C���J���K�C�h</center>
 <center>�ŏI�X�V�� 2015/02/28</center>
-<center><a href="http://sakura-editor.sourceforge.net/" target=_blank>http://sakura-editor.sourceforge.net/</a></center>
+<center><a href="https://sakura-editor.github.io/" target=_blank>https://sakura-editor.github.io/</a></center>
 <center><a href="http://sakura.qp.land.to/?Plugin" target=_blank>http://sakura.qp.land.to/?Plugin</a></center>
 <center><hr width = "350px"></center>
 �@�{�w���v�́A�T�N���G�f�B�^�̃v���O�C�����J������ׂ̃K�C�h�ł��B<br>
diff --git a/help/sakura/_RESOURCE/HLP000001.html b/help/sakura/_RESOURCE/HLP000001.html
index 9adc96ce03..8e57d4beb5 100644
--- a/help/sakura/_RESOURCE/HLP000001.html
+++ b/help/sakura/_RESOURCE/HLP000001.html
@@ -17,7 +17,7 @@
 <center><hr width = "350px"></center>
 <center>�T�N���G�f�B�^   Ver 2.3.2.0</center>
 <center>�w���v�t�@�C���ŏI�X�V�� 2017/05/02</center>
-<center><a href="http://sakura-editor.sourceforge.net/" target=_blank>http://sakura-editor.sourceforge.net/</a></center>
+<center><a href="https://sakura-editor.github.io/" target=_blank>https://sakura-editor.github.io/</a></center>
 <center><hr width = "350px"></center>
 �T�N���G�f�B�^(����:�e�L�X�g�G�f�B�^)�́A�u����(�|�p���_)�v����̃e�L�X�g�G�f�B�^SAKURA�̌��J�\�[�X(2000/02/21�t)�����ɕs��C������ы@�\�g�����s�������̂ł��B<br>
 �{�w���v�́A�I���W�i���̃w���v�����ɁA�����J���łŏC���E�ύX���ꂽ�_�ɂ‚��ċL�q�������Ă��܂��B<br>
diff --git a/help/sakura/_RESOURCE/HLP000104.html b/help/sakura/_RESOURCE/HLP000104.html
index 7a2c3d9323..2108c39bac 100644
--- a/help/sakura/_RESOURCE/HLP000104.html
+++ b/help/sakura/_RESOURCE/HLP000104.html
@@ -27,7 +27,7 @@
 			Orange<br />
 			Strawberry<br />
 			������ЃT�N������<br />
-			http://sakura-editor.sourceforge.net/<br />
+			https://sakura-editor.github.io/<br />
 		</div>
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diff --git a/help/sakura/_RESOURCE/HLP000112.html b/help/sakura/_RESOURCE/HLP000112.html
index 7067d3c5c8..059098e588 100644
--- a/help/sakura/_RESOURCE/HLP000112.html
+++ b/help/sakura/_RESOURCE/HLP000112.html
@@ -14,7 +14,7 @@
 �T�N���G�f�B�^�̍ŐV�o�[�W�����y�у\�[�X�́A�ȉ���Web�y�[�W�������”\�ł��B<br>
 <div class=li200>
 �EProject Sakura-Editor<br>
-&nbsp;&nbsp;&nbsp;&nbsp;<a href="http://sakura-editor.sourceforge.net/" target=_blank>http://sakura-editor.sourceforge.net/</a><br>
+&nbsp;&nbsp;&nbsp;&nbsp;<a href="https://sakura-editor.github.io/" target=_blank>https://sakura-editor.github.io/</a><br>
 </div><br>
 �T�N���G�f�B�^�͂܂��܂����W�r��̃\�t�g�E�F�A�ł��B���[�U�[�̊F�l�ɂ��ǂ����̂�񋟂��邽�߁A���ǂ�C���𑱂��Ă��܂��B<br>
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diff --git a/help/sakura/_RESOURCE/HLP_UR000.html b/help/sakura/_RESOURCE/HLP_UR000.html
index ba1c23e113..4f767cdb7c 100644
--- a/help/sakura/_RESOURCE/HLP_UR000.html
+++ b/help/sakura/_RESOURCE/HLP_UR000.html
@@ -15,7 +15,7 @@
 <h2>�v���W�F�N�g�A����</h2>
 �T�N���G�f�B�^�̍ŐV�ŋy�т��̃\�[�X���ȉ��̃T�C�g�Ō��J���Ă��܂��B<br>
 <br>
-&nbsp;&nbsp;&nbsp;&nbsp;<a href="http://sakura-editor.sourceforge.net/" target=_blank>http://sakura-editor.sourceforge.net/</a><br>
+&nbsp;&nbsp;&nbsp;&nbsp;<a href="https://sakura-editor.github.io/" target=_blank>https://sakura-editor.github.io/</a><br>
 <br>
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