diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 5f75684a589..02c6cd9207a 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -9,7 +9,7 @@ stroomTestData = "0.2.3"
 aws = "2.31.68"
 commons-io = "2.19.0"
 dropwizard = "4.0.14" # used to set the dropwizard-bom version, that controls lots of dependency versions
-elasticsearch = "8.12.2"
+elasticsearch = "9.1.5"
 httpcore = "4.4.16" # Transient dependency of Elasticsearch
 flyway = "11.9.1"
 guice = "7.0.0"