diff --git a/gradle.properties b/gradle.properties
index 795765b..f0a45cf 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -31,7 +31,7 @@ mockitoKotlinVersion=4.0.0
 mockitoVersion=4.6.1
 hamcrestVersion=2.2
 
-postgresqlVersion=42.4.1
+postgresqlVersion=42.4.3
 
 cordaClusterURL=https://localhost:8888
 cordaRpcUser=admin