diff --git a/dhall-bash-simple.nix b/dhall-bash-simple.nix
index 43b5728..a85ec17 100644
--- a/dhall-bash-simple.nix
+++ b/dhall-bash-simple.nix
@@ -4,7 +4,7 @@ pkgs.stdenv.mkDerivation rec {
   name = "dhall-bash-simple";
 
   src = pkgs.fetchurl {
-    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.22.0/dhall-bash-1.0.20-x86_64-linux.tar.bz2";
+    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.23.0/dhall-bash-1.0.20-x86_64-linux.tar.bz2";
     sha256 = "0775d7ws2w5ra4l2vi1ml366w5p1hbbd151343mq0ycd06zgcnbr";
   };
 
diff --git a/dhall-json-simple.nix b/dhall-json-simple.nix
index 5901649..19fe2a7 100644
--- a/dhall-json-simple.nix
+++ b/dhall-json-simple.nix
@@ -4,7 +4,7 @@ pkgs.stdenv.mkDerivation rec {
   name = "dhall-json-simple";
 
   src = pkgs.fetchurl {
-    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.22.0/dhall-json-1.2.8-x86_64-linux.tar.bz2";
+    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.23.0/dhall-json-1.2.8-x86_64-linux.tar.bz2";
     sha256 = "0gvzgq5q1vlr1rny8dabi2bxllf90yis70wn10kzvfnmam8x3bmp";
   };
 
diff --git a/dhall-simple.nix b/dhall-simple.nix
index 7889a34..a993cee 100644
--- a/dhall-simple.nix
+++ b/dhall-simple.nix
@@ -4,7 +4,7 @@ pkgs.stdenv.mkDerivation rec {
   name = "dhall-simple";
 
   src = pkgs.fetchurl {
-    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.22.0/dhall-1.22.0-x86_64-linux.tar.bz2";
+    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.23.0/dhall-1.23.0-x86_64-linux.tar.bz2";
     sha256 = "0j7b3lg432df5ik2fdzxbqgx8zv0kpzy4mljfn9y0yncdrjh09zb";
   };
 
diff --git a/dhall-text-simple.nix b/dhall-text-simple.nix
index 68853e1..908cbf7 100644
--- a/dhall-text-simple.nix
+++ b/dhall-text-simple.nix
@@ -4,7 +4,7 @@ pkgs.stdenv.mkDerivation rec {
   name = "dhall-text-simple";
 
   src = pkgs.fetchurl {
-    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.22.0/dhall-text-1.0.17-x86_64-linux.tar.bz2";
+    url = "https://github.com/dhall-lang/dhall-haskell/releases/download/1.23.0/dhall-text-1.0.17-x86_64-linux.tar.bz2";
     sha256 = "0hcfwyig6c1wvyqahmyhb5xkrb4vay2z6vlc1r9is8lbq65n9wyd";
   };