diff --git a/pkgs/development/libraries/json-glib/default.nix b/pkgs/development/libraries/json-glib/default.nix
index e49063a9de9..5cfafc8e69a 100644
--- a/pkgs/development/libraries/json-glib/default.nix
+++ b/pkgs/development/libraries/json-glib/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, glib, pkgconfig, gobjectIntrospection, dbus }:
 
 stdenv.mkDerivation rec {
-  name = "json-glib-${minVer}.2";
-  minVer = "1.0";
+  name = "json-glib-${minVer}.0";
+  minVer = "1.2";
 
   src = fetchurl {
     url = "mirror://gnome/sources/json-glib/${minVer}/${name}.tar.xz";
-    sha256 = "887bd192da8f5edc53b490ec51bf3ffebd958a671f5963e4f3af32c22e35660a";
+    sha256 = "1lx7p1c7cl21byvfgw92n8dhm09vi6qxrs0zkx9dg3y096zdzmlr";
   };
 
   configureflags= "--with-introspection";