diff --git a/tools/gtdbtk/gtdbtk_classify_wf.xml b/tools/gtdbtk/gtdbtk_classify_wf.xml
index b9b0f7e6382..88c9fcae64b 100644
--- a/tools/gtdbtk/gtdbtk_classify_wf.xml
+++ b/tools/gtdbtk/gtdbtk_classify_wf.xml
@@ -39,7 +39,7 @@ $advanced.force
         <param name="input" type="data" format="fasta,fasta.gz" multiple="true" label="Fasta (Genome) files"/>
         <param name="gtdbtk_db" type="select" label="GTDB-Tk database" help="This version of GTDB-Tk requires GTDB version 207 or 214. Please contact your service administrator if this version is not available to select.">
             <options from_data_table="gtdbtk_database_versioned">
-                <filter type="regexp" column="version" value="^2(07|14)$"/>
+                <filter type="regexp" column="version" value="^220$"/>
                 <validator type="no_options" message="No locally cached GTDB-Tk database is available"/>
             </options>
         </param>