diff --git a/src/main/resources/uk/ac/ebi/ena/sra/schema/SRA.experiment.xsd b/src/main/resources/uk/ac/ebi/ena/sra/schema/SRA.experiment.xsd
index 4900cfd..4b9b921 100644
--- a/src/main/resources/uk/ac/ebi/ena/sra/schema/SRA.experiment.xsd
+++ b/src/main/resources/uk/ac/ebi/ena/sra/schema/SRA.experiment.xsd
@@ -218,6 +218,11 @@
           <xs:documentation>Genotyping by sequencing is a method to discover single nucleotide polymorphisms for genotyping studies.</xs:documentation>
         </xs:annotation>
       </xs:enumeration>
+      <xs:enumeration value="Ribo-Seq">
+        <xs:annotation>
+          <xs:documentation>Ribosome profiling is a method based on deep sequencing of ribosome-protected mRNA fragments. Ribo-Seq, provides a snapshot of all the ribosomes active in a cell at a specific time point.</xs:documentation>
+        </xs:annotation>
+      </xs:enumeration>
       <xs:enumeration value="OTHER">
         <xs:annotation>
           <xs:documentation> Library strategy not listed. </xs:documentation>