diff --git a/csl/science.csl b/csl/science.csl
index 0c7bce48fc..c730a5bf1d 100644
--- a/csl/science.csl
+++ b/csl/science.csl
@@ -86,7 +86,7 @@
   </citation>
   <bibliography>
     <option name="hanging-indent" value="false"/>
-    <option name="et-al-min" value="5"/>
+    <option name="et-al-min" value="6"/>
     <option name="et-al-use-first" value="1"/>
     <layout suffix=".">
       <text variable="citation-number" suffix=". "/>