Update Dockerfile

Dockerfile

@@ -37,7 +37,7 @@ RUN \
     pip3 --version && \
     pip3 install --upgrade autoenv autopep8 cmake-format conan conan_package_tools meson && \
     pip3 install --upgrade cppclean flawfinder lizard pygments pybind11 pystan && \
-    pip3 install --upgrade dlib ipython jupyter matplotlib nose numba numpy pandas pymc3 requests scikit-learn scipy seaborn sympy quandl fbprophet textblob nltk pyyaml yfinance && \
+    pip3 install --upgrade dlib ipython jupyter matplotlib nose numba numpy pandas pymc3 requests scikit-learn scipy seaborn sympy quandl fbprophet textblob nltk yfinance && \
     pip3 install --upgrade PyPortfolioOpt && \
     exit 0