diff --git a/pkgs/by-name/ar/arrow-cpp/package.nix b/pkgs/by-name/ar/arrow-cpp/package.nix
index 5f47bd7d26d8..44c23d06329c 100644
--- a/pkgs/by-name/ar/arrow-cpp/package.nix
+++ b/pkgs/by-name/ar/arrow-cpp/package.nix
@@ -68,19 +68,19 @@ let
     name = "arrow-testing";
     owner = "apache";
     repo = "arrow-testing";
-    rev = "4d209492d514c2d3cb2d392681b9aa00e6d8da1c";
-    hash = "sha256-IkiCbuy0bWyClPZ4ZEdkEP7jFYLhM7RCuNLd6Lazd4o=";
+    rev = "d2a13712303498963395318a4eb42872e66aead7";
+    hash = "sha256-c8FL37kG0uo7o0Zp71WjCl7FD5BnVgqUCCXXX9gI0lg=";
   };
 
   parquet-testing = fetchFromGitHub {
     name = "parquet-testing";
     owner = "apache";
     repo = "parquet-testing";
-    rev = "c7cf1374cf284c0c73024cd1437becea75558bf8";
-    hash = "sha256-DThjyZ34LajHwXZy1IhYKUGUG/ejQ9WvBNuI8eUKmSs=";
+    rev = "18d17540097fca7c40be3d42c167e6bfad90763c";
+    hash = "sha256-gKEQc2RKpVp39RmuZbIeIXAwiAXDHGnLXF6VQuJtnRA=";
   };
 
-  version = "19.0.1";
+  version = "20.0.0";
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "arrow-cpp";
@@ -90,7 +90,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "apache";
     repo = "arrow";
     rev = "apache-arrow-${version}";
-    hash = "sha256-toHwUIOZRpgR0K7pQtT5nqWpO9G7AuHYTcvA6UVg9lA=";
+    hash = "sha256-JFPdKraCU+xRkBTAHyY4QGnBVlOjQ1P5+gq9uxyqJtk=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/cpp";