diff --git a/csl/harvard1.csl b/csl/harvard1.csl
index d4f098f1bc..ccd491d2f0 100644
--- a/csl/harvard1.csl
+++ b/csl/harvard1.csl
@@ -106,9 +106,9 @@
     </group>
   </macro>
   <citation>
-    <option name="et-al-min" value="4"/>
+    <option name="et-al-min" value="3"/>
     <option name="et-al-use-first" value="1"/>
-    <option name="et-al-subsequent-min" value="4"/>
+    <option name="et-al-subsequent-min" value="3"/>
     <option name="et-al-subsequent-use-first" value="1"/>
     <option name="disambiguate-add-year-suffix" value="true"/>
     <option name="disambiguate-add-names" value="true"/>