diff --git a/programming/language/python3/python3-tomli/pspec.xml b/programming/language/python3/python3-tomli/pspec.xml
index c6c6ae7d57..2ebba54446 100644
--- a/programming/language/python3/python3-tomli/pspec.xml
+++ b/programming/language/python3/python3-tomli/pspec.xml
@@ -20,6 +20,7 @@
             <Dependency>python3-flit-core</Dependency>
             <Dependency>python3-wheel</Dependency>
             <Dependency>python3-tomli</Dependency>
+            <Dependency>python3-pyparsing</Dependency>
             <Dependency>python3-setuptools</Dependency>
         </BuildDependencies>
         <!--