diff --git a/pkgs/development/libraries/pdal/default.nix b/pkgs/development/libraries/pdal/default.nix
index 666b230e747..1c11e4d449e 100644
--- a/pkgs/development/libraries/pdal/default.nix
+++ b/pkgs/development/libraries/pdal/default.nix
@@ -22,13 +22,13 @@
 
 stdenv.mkDerivation rec {
   pname = "pdal";
-  version = "2.5.5";
+  version = "2.5.6";
 
   src = fetchFromGitHub {
     owner = "PDAL";
     repo = "PDAL";
     rev = version;
-    sha256 = "sha256-AhekpvWAdbDAYAr38VXPBDGE40xvP0BnEAI2ZKF3ctY=";
+    sha256 = "sha256-JKwa89c05EfZ/FxOkj8lYmw0o2EgSqafRDIV2mTpZ5E=";
   };
 
   nativeBuildInputs = [