diff --git a/Dockerfile b/Dockerfile
index 8a2fb65..4581d46 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,7 +31,7 @@ RUN \
     pip3 install --upgrade pip setuptools wheel && \
     pip3 --version && \
     pip3 install --upgrade autoenv autopep8 cmake-format conan conan_package_tools && \
-    pip3 install --upgrade cppclean flawfinder lizard pygments && \ # pybind11
+    pip3 install --upgrade cppclean flawfinder lizard pygments pybind11 && \
     pip3 install --upgrade dlib ipython jupyter matplotlib nose numpy pandas pymc3 scikit-learn scipy seaborn sympy && \
     pip3 install --upgrade PyPortfolioOpt && \
     exit 0