doc/install.rst          | 2 +-
 doc/pip-requirements.txt | 2 +-
 makedist.sh              | 7 ++++---
 pip-requirements.txt     | 2 +-

diff --git a/doc/install.rst b/doc/install.rst
index e93b8100548883bcf6be0949f9647b4854160f2f1a8c7e2bbabbed40e27b8526..2818fc85175845259392fe08552adc64641009e16dc6f0e0b7b44311619ce9ee 100644
--- a/doc/install.rst
+++ b/doc/install.rst
@@ -22,7 +22,7 @@ You could use pip (**no** OpenPGP authentication is performed!) with PyPI::
 
     $ cat > requirements.txt <<EOF
     pyderasn==8.2 --hash=sha256:TO-BE-FILLED
-    six==1.14.0 --hash=sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a
+    six==1.15.0 --hash=sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259
     EOF
     $ pip install --requirement requirements.txt
 
diff --git a/doc/pip-requirements.txt b/doc/pip-requirements.txt
index 21f3313dde1c2f907067f818c9afefdb4a88d2fe10f5fb8e888468826a0243d2..1dc7e1baea19453cd28d36c7295bd5073bdb5bcd9a7519abe6cf8c71c96c392e 100644
--- a/doc/pip-requirements.txt
+++ b/doc/pip-requirements.txt
@@ -10,7 +10,7 @@ MarkupSafe==1.1.1
 Pygments==2.5.2
 pytz==2019.3
 requests==2.22.0
-six==1.14.0
+six==1.15.0
 snowballstemmer==2.0.0
 Sphinx==1.6.7
 sphinxcontrib-websupport==1.2.0
diff --git a/makedist.sh b/makedist.sh
index 4bcc22798bae684a296ce7fdbda1e015038df66000ef24357f51058d0e2545a1..6bb590bb62a9d73482df2cfd8a06c816ab3a50956aa4878bf75bf6128750bcdf 100755
--- a/makedist.sh
+++ b/makedist.sh
@@ -13,9 +13,10 @@ echo pyderasn.py >> $tmp/includes
 echo setup.py >> $tmp/includes
 tar cfI - $tmp/includes | tar xfC - $tmp/pyderasn-"$release"
 
-PYTHONPATH="$tmp/pyderasn-$release" make -C $tmp/pyderasn-"$release"/doc
+PYTHONPATH="$tmp/pyderasn-$release" redo $tmp/pyderasn-"$release"/doc/build.log
+rm -r $tmp/pyderasn-"$release"/doc/.redo $tmp/pyderasn-"$release"/doc/build.log
 
-tar xvfC doc/download/six-1.14.0.tar.gz $tmp --include "*/*six.py"
+tar xvfC doc/download/six-1.15.0.tar.gz $tmp --include "*/*six.py"
 mv -v $tmp/six-*/six.py $tmp/pyderasn-"$release"
 mv -v $tmp/six-*/test_six.py $tmp/pyderasn-"$release"/tests
 
@@ -23,7 +24,7 @@ tar xvfC doc/download/termcolor-1.1.0.tar.gz $tmp --include "*/termcolor.py"
 mv -v $tmp/termcolor-*/termcolor.py $tmp/pyderasn-"$release"
 
 pip_hash=$(pip hash dist/pyderasn-"$release".tar.gz | sed -n '$p')
-six_requirement="six==1.14.0 --hash=sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a"
+six_requirement="six==1.15.0 --hash=sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"
 
 cd $tmp
 find . -type d -exec chmod 755 {} \;
diff --git a/pip-requirements.txt b/pip-requirements.txt
index ad2a216cff276eba2774428867f2004f5e4deac0603e8296bdd8a83c005e722f..499e04387d4e89b00608f81d5851ffb7682b069fc80de249950b9dfb861a3603 100644
--- a/pip-requirements.txt
+++ b/pip-requirements.txt
@@ -1 +1 @@
-six~=1.14
+six~=1.15