diff --git a/pkgs/development/java-modules/postgresql_jdbc/default.nix b/pkgs/development/java-modules/postgresql_jdbc/default.nix
index e7968cf80c0..524273e080f 100644
--- a/pkgs/development/java-modules/postgresql_jdbc/default.nix
+++ b/pkgs/development/java-modules/postgresql_jdbc/default.nix
@@ -2,19 +2,21 @@
 
 stdenv.mkDerivation rec {
   pname = "postgresql-jdbc";
-  version = "42.2.5";
+  version = "42.2.20";
 
   src = fetchMavenArtifact {
     artifactId = "postgresql";
     groupId = "org.postgresql";
-    sha256 = "1p0cbb7ka41xxipzjy81hmcndkqynav22xyipkg7qdqrqvw4dykz";
+    sha256 = "0kjilsrz9shymfki48kg1q84la1870ixlh2lnfw347x8mqw2k2vh";
     inherit version;
   };
 
   phases = [ "installPhase" ];
 
   installPhase = ''
+    runHook preInstall
     install -m444 -D $src/share/java/*postgresql-${version}.jar $out/share/java/postgresql-jdbc.jar
+    runHook postInstall
   '';
 
   meta = with lib; {