diff --git a/.travis.yml b/.travis.yml
index c11084f..4c8eedd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,4 +3,4 @@ services:
 
 script:
   - docker ps
-  - docker run -dit faizanbashir/python:2.7 sh
\ No newline at end of file
+  - docker run -it faizanbashir/python:3.6 sh
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 9a59f05..868880b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -41,7 +41,7 @@ ENV PACKAGES="\
     tcl \
     tk \
     libssl1.0 \
-"
+    "
 
 # PYTHON DATA SCIENCE PACKAGES
 #   * numpy: support for large, multi-dimensional arrays and matrices
@@ -51,22 +51,28 @@ ENV PACKAGES="\
 #   * pandas: library providing high-performance, easy-to-use data structures and data analysis tools
 #   * nltk: suite of libraries and programs for symbolic and statistical natural language processing for English
 ENV PYTHON_PACKAGES="\
+    cython \
     numpy \
     matplotlib \
     scipy \
     scikit-learn \
     pandas \
     nltk \
-" 
+    " 
 
-RUN apk add --no-cache --virtual build-dependencies python --update py-pip \
+RUN apk add --no-cache --virtual build-dependencies python3 \
     && apk add --virtual build-runtime \
-    build-base python-dev openblas-dev freetype-dev pkgconfig gfortran \
+    build-base python3-dev openblas-dev freetype-dev pkgconfig gfortran \
     && ln -s /usr/include/locale.h /usr/include/xlocale.h \
-    && pip install --upgrade pip \
+    && python3 -m ensurepip \
+    && rm -r /usr/lib/python*/ensurepip \
+    && pip3 install --upgrade pip setuptools \
+    && ln -sf /usr/bin/python3 /usr/bin/python \
+    && ln -sf pip3 /usr/bin/pip \
+    && rm -r /root/.cache \
     && pip install --no-cache-dir $PYTHON_PACKAGES \
     && apk del build-runtime \
     && apk add --no-cache --virtual build-dependencies $PACKAGES \
     && rm -rf /var/cache/apk/*
 
-CMD ["python"]
\ No newline at end of file
+CMD ["python3"]