diff --git a/build/pkgs/configure/checksums.ini b/build/pkgs/configure/checksums.ini
index 657a407ed04..e3adddf590e 100644
--- a/build/pkgs/configure/checksums.ini
+++ b/build/pkgs/configure/checksums.ini
@@ -1,4 +1,4 @@
 tarball=configure-VERSION.tar.gz
-sha1=0842a677c09b550b0c091037c63d141cf709595b
-md5=615976ca4d2fcbf9b0559b809e5bf645
-cksum=792467397
+sha1=ffe6a29226d8d228c72b33127e5d4cc10f7c7569
+md5=ae95b37bd75883c16675619552b09c9f
+cksum=2910180227
diff --git a/build/pkgs/configure/package-version.txt b/build/pkgs/configure/package-version.txt
index 731312f1e86..5afcc36a01d 100644
--- a/build/pkgs/configure/package-version.txt
+++ b/build/pkgs/configure/package-version.txt
@@ -1 +1 @@
-f9609a075a93ad4c6d270f129c6c33f4945e4bdc
+a47bb20b731d02de83b56fac90e5a05ea790dd21
diff --git a/configure.ac b/configure.ac
index df9cd6624ef..532da2165e8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -507,7 +507,7 @@ AC_ARG_ENABLE([cvxopt],
 AC_ARG_ENABLE([notebook],
   AS_HELP_STRING([--disable-notebook],
                  [disable build of the Jupyter notebook and related packages]), [
-    for pkg in notebook nbconvert beautifulsoup4 sagenb_export nbformat nbclient terminado send2trash prometheus_client mistune pandocfilters bleach defusedxml jsonschema jupyter_jsmol argon2_cffi; do
+    for pkg in notebook nbconvert beautifulsoup4 sagenb_export nbformat nbclient terminado send2trash prometheus_client mistune pandocfilters bleach defusedxml jsonschema jupyter_jsmol argon2_cffi webencodings tinycss2; do
       AS_VAR_SET([SAGE_ENABLE_$pkg], [$enableval])
     done
   ])