diff --git a/pkgs/applications/misc/pgadmin/default.nix b/pkgs/applications/misc/pgadmin/default.nix
index f26326f4d4e..bace31b1b1a 100644
--- a/pkgs/applications/misc/pgadmin/default.nix
+++ b/pkgs/applications/misc/pgadmin/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "pgadmin3-${version}";
-  version = "1.18.1";
+  version = "1.20.0";
 
   src = fetchurl {
     url = "http://ftp.postgresql.org/pub/pgadmin3/release/v${version}/src/pgadmin3-${version}.tar.gz";
-    sha256 = "1h6bqslw53q44vy7z1q7wmxkgqdzxacfs8pfm2fxm8vcd8lkxb17";
+    sha256 = "133bcbx9a322adldd1498h8bn2wfk45v1sbj9269jylwda1dfwq7";
   };
 
   buildInputs = [ postgresql wxGTK libxml2 libxslt openssl ];