diff --git a/build/pkgs/matplotlib/dependencies b/build/pkgs/matplotlib/dependencies
index 542dab4e297..b81d1d224c7 100644
--- a/build/pkgs/matplotlib/dependencies
+++ b/build/pkgs/matplotlib/dependencies
@@ -1,4 +1,4 @@
-$(PYTHON) numpy freetype pillow dateutil pyparsing tornado six cycler | $(PYTHON_TOOLCHAIN) pytz kiwisolver certifi
+$(PYTHON) numpy freetype pillow dateutil pyparsing six cycler | $(PYTHON_TOOLCHAIN) pytz kiwisolver certifi
 
 ----------
 All lines of this file are ignored except the first.
diff --git a/configure.ac b/configure.ac
index 684bca29fbe..7274c149656 100644
--- a/configure.ac
+++ b/configure.ac
@@ -419,7 +419,7 @@ AC_SUBST([SAGE_SPKG_OPTIONS])
 AC_ARG_ENABLE([notebook],
   AS_HELP_STRING([--disable-notebook],
                  [disable build of the Jupyter notebook and related packages]), [
-    for pkg in notebook nbconvert nbformat tornado terminado send2trash prometheus_client mistune traitlets pandocfilters bleach defusedxml jsonschema jupyter_jsmol; do
+    for pkg in notebook nbconvert sagenb_export nbformat terminado send2trash prometheus_client mistune pandocfilters bleach defusedxml jsonschema jupyter_jsmol; do
       AS_VAR_SET([SAGE_ENABLE_$pkg], [$enableval])
     done
   ])