diff --git a/corese-unit-test/src/test/resources/data/rdf-star-main/Gemfile.lock b/corese-unit-test/src/test/resources/data/rdf-star-main/Gemfile.lock
index 53732640d..7a27e9361 100644
--- a/corese-unit-test/src/test/resources/data/rdf-star-main/Gemfile.lock
+++ b/corese-unit-test/src/test/resources/data/rdf-star-main/Gemfile.lock
@@ -66,7 +66,7 @@ GEM
       rdf (~> 3.1)
       rexml (~> 3.2)
     redcarpet (3.5.1)
-    rexml (3.2.5)
+    rexml (3.3.9)
     scanf (1.0.0)
     sparql (3.1.8)
       builder (~> 3.2)