diff --git a/doc/README.md b/doc/README.md
index 041f269..bb92dd1 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -2,7 +2,7 @@ Backtesting.py Documentation
 ============================
 After installing documentation dependencies:
 
-    pip install .[doc]
+    pip install .[doc,test]
 
 build HTML documentation by running:
 
diff --git a/doc/build.sh b/doc/build.sh
index a936687..80bad67 100755
--- a/doc/build.sh
+++ b/doc/build.sh
@@ -4,7 +4,7 @@ IS_RELEASE=${TRAVIS_TAG+1}
 
 die () { echo "ERROR: $*" >&2; exit 2; }
 
-for cmd in pdoc     \
+for cmd in pdoc3    \
            jupytext \
            jupyter-nbconvert; do
     command -v "$cmd" >/dev/null ||
@@ -21,7 +21,7 @@ echo
 mkdir -p "$BUILDROOT"
 rm -r "$BUILDROOT" 2>/dev/null || true
 pushd "$DOCROOT/.." >/dev/null
-pdoc --html --html-no-source \
+pdoc3 --html --html-no-source \
      ${IS_RELEASE+--template-dir "$DOCROOT/pdoc_template"} \
      --html-dir "$BUILDROOT" \
      backtesting
diff --git a/setup.py b/setup.py
index 32b1fe3..a48f4af 100644
--- a/setup.py
+++ b/setup.py
@@ -45,6 +45,7 @@ if __name__ == '__main__':
             ],
             'test': [
                 'seaborn',
+                'matplotlib',
             ],
             'dev': [
                 'flake8',