diff --git a/build/pkgs/nbconvert/dependencies b/build/pkgs/nbconvert/dependencies
index 86e4ceccf2e..889b9ac5db3 100644
--- a/build/pkgs/nbconvert/dependencies
+++ b/build/pkgs/nbconvert/dependencies
@@ -1,4 +1,4 @@
-$(PYTHON)  mistune jinja2 pygments traitlets jupyter_core nbformat entrypoints bleach pandocfilters testpath defusedxml jupyter_client jupyterlab_pygments nbclient beautifulsoup4 | $(PYTHON_TOOLCHAIN)
+$(PYTHON)  mistune jinja2 pygments traitlets jupyter_core nbformat entrypoints bleach pandocfilters testpath defusedxml jupyter_client jupyterlab_pygments nbclient beautifulsoup4 markupsafe | $(PYTHON_TOOLCHAIN)
 
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