diff --git a/pom.xml b/pom.xml
index f2e3a17046..9c38dd2c22 100644
--- a/pom.xml
+++ b/pom.xml
@@ -497,7 +497,7 @@ under the License.
     <testcontainers.version>2.0.5</testcontainers.version>
 
     <zonky.embedded-postgres.version>2.2.2</zonky.embedded-postgres.version>
-    <zonky.embedded-postgres-binaries.version>18.3.0</zonky.embedded-postgres-binaries.version>
+    <zonky.embedded-postgres-binaries.version>18.4.0</zonky.embedded-postgres-binaries.version>
 
     <testds.rootDn>o=isp</testds.rootDn>
     <testds.bindDn>uid=admin,ou=system</testds.bindDn>