diff --git a/programming/language/python3/python3-twisted/pspec.xml b/programming/language/python3/python3-twisted/pspec.xml
index e94401f359..7b15bd6822 100644
--- a/programming/language/python3/python3-twisted/pspec.xml
+++ b/programming/language/python3/python3-twisted/pspec.xml
@@ -37,6 +37,7 @@
         <RuntimeDependencies>
             <Dependency>python3</Dependency>
             <Dependency>python3-attrs</Dependency>
+            <Dependency>python3-automat</Dependency>
             <Dependency>python3-constantly</Dependency>
             <Dependency>python3-hyperlink</Dependency>
             <Dependency>python3-incremental</Dependency>