diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 3b09303f75b..13a35c5c806 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -4102,12 +4102,6 @@
     githubId = 1843676;
     name = "Jonathan Reeve";
   };
-  joncojonathan = {
-    email = "joncojonathan@gmail.com";
-    github = "joncojonathan";
-    githubId = 11414454;
-    name = "Jonathan Haddock";
-  };
   jonringer = {
     email = "jonringer117@gmail.com";
     github = "jonringer";
diff --git a/pkgs/applications/backup/deja-dup/default.nix b/pkgs/applications/backup/deja-dup/default.nix
index 5d1d75e31eb..ad4fc9728be 100644
--- a/pkgs/applications/backup/deja-dup/default.nix
+++ b/pkgs/applications/backup/deja-dup/default.nix
@@ -71,7 +71,7 @@ stdenv.mkDerivation rec {
     '';
     homepage = "https://wiki.gnome.org/Apps/DejaDup";
     license = licenses.gpl3Plus;
-    maintainers = with maintainers; [ jtojnar joncojonathan ];
+    maintainers = with maintainers; [ jtojnar ];
     platforms = platforms.linux;
   };
 }
diff --git a/pkgs/applications/misc/gramps/default.nix b/pkgs/applications/misc/gramps/default.nix
index e5a2b87f16e..09717cd6426 100644
--- a/pkgs/applications/misc/gramps/default.nix
+++ b/pkgs/applications/misc/gramps/default.nix
@@ -13,14 +13,13 @@ in buildPythonApplication rec {
   pname = "gramps";
 
   nativeBuildInputs = [ wrapGAppsHook gettext ];
-  buildInputs = [ intltool gtk3 gobject-introspection pango gnome3.gexiv2 ] 
+  buildInputs = [ intltool gtk3 gobject-introspection pango gnome3.gexiv2 ]
     # Map support
     ++ stdenv.lib.optional enableOSM osm-gps-map
     # Graphviz support
     ++ stdenv.lib.optional enableGraphviz graphviz
     # Ghostscript support
     ++ stdenv.lib.optional enableGhostscript ghostscript
-    
   ;
 
   src = fetchFromGitHub {
@@ -60,6 +59,5 @@ in buildPythonApplication rec {
     description = "Genealogy software";
     homepage = "https://gramps-project.org";
     license = licenses.gpl2;
-    maintainers = with maintainers; [ joncojonathan ];
   };
 }
diff --git a/pkgs/applications/misc/keepass/default.nix b/pkgs/applications/misc/keepass/default.nix
index ea579ce4117..23f80eaa9ca 100644
--- a/pkgs/applications/misc/keepass/default.nix
+++ b/pkgs/applications/misc/keepass/default.nix
@@ -87,7 +87,7 @@ with builtins; buildDotnetPackage rec {
 
   dynlibPath = stdenv.lib.makeLibraryPath [ gtk2 ];
 
-  postInstall = 
+  postInstall =
   let
     extractFDeskIcons = ./extractWinRscIconsToStdFreeDesktopDir.sh;
   in
@@ -111,7 +111,7 @@ with builtins; buildDotnetPackage rec {
   meta = {
     description = "GUI password manager with strong cryptography";
     homepage = "http://www.keepass.info/";
-    maintainers = with stdenv.lib.maintainers; [ amorsillo obadz joncojonathan jraygauthier ];
+    maintainers = with stdenv.lib.maintainers; [ amorsillo obadz jraygauthier ];
     platforms = with stdenv.lib.platforms; all;
     license = stdenv.lib.licenses.gpl2;
   };