diff --git a/build.gradle b/build.gradle
index 7cf3adb4bd..ffddb62294 100644
--- a/build.gradle
+++ b/build.gradle
@@ -110,7 +110,7 @@ buildscript {
     ext.jsr305_version = constants.getProperty("jsr305Version")
     ext.shiro_version = '1.10.0'
     ext.artifactory_plugin_version = constants.getProperty('artifactoryPluginVersion')
-    ext.hikari_version = '3.3.1'
+    ext.hikari_version = '4.0.3'
     ext.liquibase_version = '3.6.3'
     ext.artifactory_contextUrl = 'https://software.r3.com/artifactory'
     ext.publicArtifactURL = 'https://download.corda.net/maven'