diff --git a/build.gradle b/build.gradle
index e2491b742e..958302c2a6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -46,7 +46,7 @@ buildscript {
     ext.jansi_version = '1.14'
     ext.hibernate_version = '5.3.6.Final'
     ext.h2_version = '1.4.197' // Update docs if renamed or removed.
-    ext.postgresql_version = '42.1.4'
+    ext.postgresql_version = '42.2.5'
     ext.rxjava_version = '1.3.8'
     ext.dokka_version = '0.9.17'
     ext.eddsa_version = '0.2.0'
diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index dba020402e..041ee3ca1e 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -4,6 +4,11 @@ Changelog
 Here's a summary of what's changed in each Corda release. For guidance on how to upgrade code from the previous
 release, see :doc:`app-upgrade-notes`.
 
+Unreleased
+----------
+
+* Updating postgres dependency to 42.2.5
+
 .. _changelog_v4.0:
 
 Version 4.0