diff --git a/programming/language/python3/python3-sphinx/pspec.xml b/programming/language/python3/python3-sphinx/pspec.xml
index bde24b8d09..a0d3434065 100644
--- a/programming/language/python3/python3-sphinx/pspec.xml
+++ b/programming/language/python3/python3-sphinx/pspec.xml
@@ -39,6 +39,7 @@
             <Dependency>python3-imagesize</Dependency>
             <Dependency>python3-packaging</Dependency>
             <Dependency>python3-setuptools</Dependency>
+            <Dependency>python3-charset-normalizer</Dependency>
             <Dependency>python3-snowballstemmer</Dependency>
             <Dependency>python3-sphinxcontrib-qthelp</Dependency>
             <Dependency>python3-sphinxcontrib-jsmath</Dependency>