diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index e1b7875cd937..9679b4b3646e 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -5401,6 +5401,11 @@
     github = "xaverdh";
     name = "Dominik Xaver Hörl";
   };
+  xbreak = {
+    email = "xbreak@alphaware.se";
+    github = "xbreak";
+    name = "Calle Rosenquist";
+  };
   xeji = {
     email = "xeji@cat3.de";
     github = "xeji";
diff --git a/pkgs/development/libraries/cfitsio/default.nix b/pkgs/development/libraries/cfitsio/default.nix
index a21158723be1..32308c34ead1 100644
--- a/pkgs/development/libraries/cfitsio/default.nix
+++ b/pkgs/development/libraries/cfitsio/default.nix
@@ -1,15 +1,23 @@
-{ fetchurl, stdenv }:
+{ fetchurl, stdenv
 
- stdenv.mkDerivation {
-  name = "cfitsio-3.430";
+# Optional dependencies
+, bzip2 ? null }:
+
+stdenv.mkDerivation rec {
+  name = "cfitsio-${version}";
+  version = "3.450";
 
   src = fetchurl {
-    url = "ftp://heasarc.gsfc.nasa.gov/software/fitsio/c/cfitsio3430.tar.gz";
-    sha256 = "07fghxh5fl8nqk3q0dh8rvc83npnm0hisxzcj16a6r7gj5pmp40l";
+    url = "https://heasarc.gsfc.nasa.gov/FTP/software/fitsio/c/cfitsio${builtins.replaceStrings ["."] [""] version}.tar.gz";
+    sha256 = "0bmrkw6w65zb0k3mszaaqy1f4zjm2hl7njww74nb5v38wvdi4q5z";
   };
 
+  buildInputs = [ bzip2 ];
+
   patches = [ ./darwin-curl-config.patch ./darwin-rpath-universal.patch ];
 
+  configureFlags = stdenv.lib.optional (bzip2 != null) "--with-bzip2=${bzip2.out}";
+
   # Shared-only build
   buildFlags = "shared";
   postPatch = '' sed -e '/^install:/s/libcfitsio.a //' -e 's@/bin/@@g' -i Makefile.in
@@ -27,8 +35,8 @@
          advanced features for manipulating and filtering the information in
          FITS files.
       '';
-    # Permissive BSD-style license.
-    license = "permissive";
+    license = licenses.mit;
+    maintainers = [ maintainers.xbreak ];
     platforms = with platforms; linux ++ darwin;
   };
 }