diff --git a/requirements-extras.txt b/requirements-extras.txt
index 8b9ead87c..2b005a65d 100644
--- a/requirements-extras.txt
+++ b/requirements-extras.txt
@@ -1,17 +1,17 @@
-gnuplot-py==1.8
+http://sourceforge.net/projects/gnuplot-py/files/Gnuplot-py/1.8/gnuplot-py-1.8.tar.gz/download
 pylint
 http://sourceforge.net/projects/pychecker/files/pychecker/0.8.19/pychecker-0.8.19.tar.gz/download
 pep8
 selenium
 winpdb
 mock
 ipython
 cython
 nose
 nosexcover
 flake8
 dropbox
 oauth2client
 apiclient
 urllib3
 python-skydrive
diff --git a/requirements-flask.txt b/requirements-flask.txt
index 54fc88b7c..1c5549fc8 100644
--- a/requirements-flask.txt
+++ b/requirements-flask.txt
@@ -1,9 +1,9 @@
 Jinja2==2.7.1
 SQLAlchemy==0.8.3
 Flask==0.10.1
 WTForms>=1.0.5
 fixture==1.4
 redis==2.8.0
-twill==0.9
+http://darcs.idyll.org/~t/projects/twill-0.9.tar.gz
 unittest2==0.5.1
 webassets==0.7
diff --git a/requirements.txt b/requirements.txt
index de4abec7e..2a957157c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,31 +1,31 @@
 MySQL-python==1.2.5
 rdflib==2.4.2
 reportlab==2.5
 python-dateutil<=1.9999
 python-magic==0.4.2
 http://www.reportlab.com/ftp/pyRXP-1.16-daily-unix.tar.gz
 numpy==1.7.0
 lxml==3.1.2
 mechanize==0.2.5
 python-Levenshtein==0.10.2
-pyPdf==1.13
+http://pybrary.net/pyPdf/pyPdf-1.13.tar.gz
 PyStemmer==1.3.0
 https://py-editdist.googlecode.com/files/py-editdist-0.3.tar.gz
 feedparser==5.1.3
 BeautifulSoup==3.2.1
 beautifulsoup4==4.3.2
 python-twitter==0.8.7
 celery==3.0.17
 msgpack-python==0.3.0
 pyparsing==1.5.6
 git+git://github.com/romanchyla/workflow.git@e41299579501704b1486c72cc2509a9f82e63ea6
 requests==1.2.1
 PyPDF2
 rauth
 unidecode
 python-openid
 qrcode
 PIL
-fs==0.4.0
+https://pyfilesystem.googlecode.com/files/fs-0.4.0.tar.gz
 libmagic==1.0
 Babel==1.3