diff --git a/jena-fuseki2/jena-fuseki-ui/yarn.lock b/jena-fuseki2/jena-fuseki-ui/yarn.lock
index 17bba883d5e..1b7661e2b78 100644
--- a/jena-fuseki2/jena-fuseki-ui/yarn.lock
+++ b/jena-fuseki2/jena-fuseki-ui/yarn.lock
@@ -4695,9 +4695,9 @@ ignore@^5.2.0, ignore@^5.3.2:
   integrity sha512-hsBTNUqQTDwkWtcdYI2i06Y/nUBEsNEDJKjWdigLvegy8kDuJAS8uRlpkkcQpyEXL0Z/pjDy5HBmMjRCJ2gq+g==
 
 immutable@^5.1.5:
-  version "5.1.5"
-  resolved "https://registry.yarnpkg.com/immutable/-/immutable-5.1.5.tgz#93ee4db5c2a9ab42a4a783069f3c5d8847d40165"
-  integrity sha512-t7xcm2siw+hlUM68I+UEOK+z84RzmN59as9DZ7P1l0994DKUWV7UXBMQZVxaoMSRQ+PBZbHCOoBt7a2wxOMt+A==
+  version "5.1.9"
+  resolved "https://registry.yarnpkg.com/immutable/-/immutable-5.1.9.tgz#ac23c3a01992ab665e14ac9ffff298f28cd74a0c"
+  integrity sha512-m8nVez3rwrgmWxtLMt1ZYXB2Lv7OKYn/disyxAlSDYAlKSlFoPPfIAmAM/M5xqL4m4C/wAPw7S2/CNaUii1Hxg==
 
 imurmurhash@^0.1.4:
   version "0.1.4"