diff --git a/Dockerfile b/Dockerfile
index df37099..35fbdf7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,28 +1,43 @@
 FROM python:2.7
 
 RUN apt-get update && \
-    apt-get install -y python-dev libldap2-dev libsasl2-dev libssl-dev python-ldap
+    apt-get install -y \
+            libldap2-dev \
+            libsasl2-dev \
+            libssl-dev \
+            python-dev \
+            python-dns \
+            python-excelerator \
+            python-imaging \
+            python-ipaddr \
+            python-ldap \
+            python-netaddr \
+            python-m2crypto \
+            python-paramiko \
+            python-pip \
+            python-pyasn1 \
+            python-pyasn1-modules
 
 ENV PYTHONPATH "/usr/local/lib/python2.7/site-packages"
 
-COPY requirements.txt /
-
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir pyweblib==1.3.12
 
 RUN useradd web2ldap
 
-RUN wget http://www.web2ldap.de/download/web2ldap-1.2.31.tar.gz && \
-    tar -zxvf web2ldap-1.2.31.tar.gz && \
-    mv web2ldap-1.2.31 /opt/web2ldap && \
-    rm -f web2ldap-1.2.31.tar.gz
+ENV WEB2LDAP_VERSION "1.2.74"
+
+RUN wget "http://www.web2ldap.de/download/web2ldap-$WEB2LDAP_VERSION.tar.gz" && \
+    tar -zxvf "web2ldap-$WEB2LDAP_VERSION.tar.gz" && \
+    mv "web2ldap-$WEB2LDAP_VERSION" /opt/web2ldap && \
+    rm -f "web2ldap-$WEB2LDAP_VERSION.tar.gz"
 
 WORKDIR /opt/web2ldap
 
 RUN sed -i s/127.0.0.1:1760/0.0.0.0:1760/g etc/web2ldap/web2ldapcnf/standalone.py && \
-    sed -i s/"\['127.0.0.0\/255.0.0.0','::1','fe00::0'\]"/"\['0.0.0.0\/0.0.0.0','::0'\]"/g etc/web2ldap/web2ldapcnf/standalone.py
+    sed -i s/"'127.0.0.0\/255.0.0.0'"/"'0.0.0.0\/0.0.0.0','::0'"/g etc/web2ldap/web2ldapcnf/standalone.py
 
 USER web2ldap
 
 EXPOSE 1760
 
-CMD sbin/web2ldap.py && tail -F var/log/web2ldap_error_log
\ No newline at end of file
+CMD sbin/web2ldap.py && tail -F var/log/web2ldap_error_log
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index d542249..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-pyweblib==1.3.11
-pyasn1==0.1.7
-pyasn1-modules==0.0.5
-netaddr==0.7.14
\ No newline at end of file