diff --git a/README.md b/README.md
index 36627d8f..af0dd467 100644
--- a/README.md
+++ b/README.md
@@ -83,7 +83,9 @@ let g:NERDTreeExtensionHighlightColor['vue'] = '42B983'
 
 ## ビルド手順
 
-Dockerを使います
+### Dockerを使う場合
+
+※Regular以外のttfファイルがおかしくなる現象が発生しています #39
 
 ```sh
 git clone https://github.com/miiton/Cica.git
@@ -91,6 +93,49 @@ cd Cica
 docker-compose build ; docker-compose run --rm cica  # ./dist/ に出力される
 ```
 
+### 手動でやる場合
+
+2018-08-27時点、Ubuntu 16.04 にて
+
+```sh
+sudo apt-get update
+sudo apt-get -y install apt-file
+sudo apt-file update
+sudo apt-file search add-apt-repository
+sudo apt-get -y install software-properties-common
+sudo apt-get -y install fontforge unar
+git clone git@github.com:miiton/Cica.git
+cd Cica
+curl -L https://github.com/source-foundry/Hack/releases/download/v3.003/Hack-v3.003-ttf.zip -o hack.zip
+unar hack.zip
+cp ttf/* sourceFonts/
+rm hack.zip
+rm -r ttf
+curl -LO https://osdn.jp/downloads/users/8/8598/rounded-mgenplus-20150602.7z
+unar rounded-mgenplus-20150602.7z
+cp rounded-mgenplus-20150602/rounded-mgenplus-1m-regular.ttf ./sourceFonts
+cp rounded-mgenplus-20150602/rounded-mgenplus-1m-bold.ttf ./sourceFonts
+curl -L https://github.com/googlei18n/noto-emoji/raw/master/fonts/NotoEmoji-Regular.ttf -o sourceFonts/NotoEmoji-Regular.ttf
+curl -LO http://sourceforge.net/projects/dejavu/files/dejavu/2.37/dejavu-fonts-ttf-2.37.zip
+unar dejavu-fonts-ttf-2.37.zip
+mv dejavu-fonts-ttf-2.37/ttf/DejaVuSansMono.ttf ./sourceFonts/
+mv dejavu-fonts-ttf-2.37/ttf/DejaVuSansMono-Bold.ttf ./sourceFonts/
+curl -L https://github.com/mirmat/iconsfordevs/raw/master/fonts/iconsfordevs.ttf -o sourceFonts/iconsfordevs.ttf
+fontforge -lang=py -script cica.py
+```
+
+[fontforge のバージョンが古いと正常に動作しません #6](https://github.com/miiton/Cica/issues/6)
+
+```
+% fontforge --version
+
+Copyright (c) 2000-2012 by George Williams.
+ Executable based on sources from 14:57 GMT 31-Jul-2012-ML.
+ Library based on sources from 14:57 GMT 31-Jul-2012.
+fontforge 20120731
+libfontforge 20120731-ML
+```
+
 ## ライセンス
 
 * [LICENSE.txt](LICENSE.txt)
diff --git a/cica.py b/cica.py
index d770aff7..9bff55ba 100644
--- a/cica.py
+++ b/cica.py
@@ -21,7 +21,7 @@
 SOURCE = './sourceFonts'
 LICENSE = open('./LICENSE.txt').read()
 COPYRIGHT = open('./COPYRIGHT.txt').read()
-VERSION = '4.1.0'
+VERSION = '4.1.1'
 FAMILY = 'Cica'
 
 fonts = [
@@ -672,6 +672,7 @@ def build_font(_f, emoji):
     cica.close()
     hack.close()
     nerd.close()
+    icons_for_devs.close()
 
 
 def add_notoemoji(_f):