diff --git a/pkgs/servers/sql/postgresql/ext/postgis.nix b/pkgs/servers/sql/postgresql/ext/postgis.nix
index 5b4e4543ec96..240137846b24 100644
--- a/pkgs/servers/sql/postgresql/ext/postgis.nix
+++ b/pkgs/servers/sql/postgresql/ext/postgis.nix
@@ -28,7 +28,7 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "postgis";
-  version = "3.4.2";
+  version = "3.4.3";
 
   outputs = [
     "out"
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "https://download.osgeo.org/postgis/source/postgis-${version}.tar.gz";
-    hash = "sha256-yMh0wAukqYSocDCva/lUSCFQIGCtRz1clvHU0INcWJI=";
+    hash = "sha256-+N7VBdrrj1dlnaK55Xf/ceGDqqCUcI0u7OLFbZM2H2I=";
   };
 
   buildInputs = [