diff --git a/po/r-novice-gapminder.ja.mo b/po/r-novice-gapminder.ja.mo
index ade28ce5..f4e9bed7 100644
Binary files a/po/r-novice-gapminder.ja.mo and b/po/r-novice-gapminder.ja.mo differ
diff --git a/po/r-novice-gapminder.ja.po b/po/r-novice-gapminder.ja.po
index 08efe28e..5fd62a88 100644
--- a/po/r-novice-gapminder.ja.po
+++ b/po/r-novice-gapminder.ja.po
@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: i18n\n"
 "Report-Msgid-Bugs-To: https://github.com/haiwen/seafile-docs/issues\n"
 "POT-Creation-Date: 2018-09-15 22:59:57+0900\n"
-"PO-Revision-Date: 2018-12-08 10:51+0900\n"
+"PO-Revision-Date: 2018-12-08 11:28+0900\n"
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 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -12409,7 +12409,7 @@ msgstr ""
 "---\n"
 "# Please do not edit this file directly; it is auto generated.\n"
 "# Instead, please edit 08-plot-ggplot2.md in _episodes_rmd/\n"
-"タイトル: ggplot2を用いて出版品質のグラフィックスを作成しよう\n"
+"タイトル: ggplot2を用いた出版品質のグラフィックス作成\n"
 "講義： 60\n"
 "練習： 20\n"
 "質問：\n"