diff --git a/docs/index.html b/docs/index.html
index 35fd2ec..3ca1721 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -143,7 +143,7 @@
 sudo apt-get install build-essential clang bison flex libreadline-dev \
                      gawk tcl-dev libffi-dev git mercurial graphviz   \
                      xdot pkg-config python python3 libftdi-dev \
-                     qt5-default python3-dev libboost-all-dev cmake
+                     qt5-default python3-dev libboost-all-dev cmake libeigen3-dev
 </pre>
 
 <p>
@@ -154,7 +154,7 @@
 sudo dnf install make automake gcc gcc-c++ kernel-devel clang bison \
                  flex readline-devel gawk tcl-devel libffi-devel git mercurial \
                  graphviz python-xdot pkgconfig python python3 libftdi-devel \
-                 qt5-devel python3-devel boost-devel boost-python3-devel
+                 qt5-devel python3-devel boost-devel boost-python3-devel eigen3-devel
 </pre>
 
 <p>