diff --git a/pkgs/applications/science/biology/bcftools/default.nix b/pkgs/applications/science/biology/bcftools/default.nix
index b6fc8af4324..db12fc00c87 100644
--- a/pkgs/applications/science/biology/bcftools/default.nix
+++ b/pkgs/applications/science/biology/bcftools/default.nix
@@ -1,22 +1,18 @@
-{ stdenv, fetchurl, htslib, zlib, bzip2, lzma, perl, bash }:
+{ stdenv, fetchurl, htslib, zlib, bzip2, lzma, curl, perl, bash }:
 
 stdenv.mkDerivation rec {
   name = "${pname}-${version}";
   pname = "bcftools";
-  major = "1.6";
-  version = "${major}.0";
+  version = "1.6";
 
   src = fetchurl {
-    url = "https://github.com/samtools/bcftools/releases/download/${major}/bcftools-${major}.tar.bz2";
+    url = "https://github.com/samtools/bcftools/releases/download/${version}/${name}.tar.bz2";
     sha256 = "10prgmf09a13mk18840938ijqgfc9y92hfc7sa2gcv07ddri0c19";
   };
 
+  nativeBuildInputs = [ perl ];
 
-  nativeBuildInputs = [ bash ];
-
-  buildInputs = [ zlib bzip2 lzma ];
-
-  propagatedBuildInputs = [ htslib ];
+  buildInputs = [ htslib zlib bzip2 lzma curl ];
 
   makeFlags = [
     "HSTDIR=${htslib}"
@@ -24,15 +20,16 @@ stdenv.mkDerivation rec {
     "CC=cc"
   ];
 
+  preCheck = ''
+    patchShebangs misc/
+    patchShebangs test/
+    sed -ie 's|/bin/bash|${bash}/bin/bash|' test/test.pl
+  '';
+
   enableParallelBuilding = true;
 
   doCheck = true;
 
-  preCheck = ''
-    sed -ie 's|/usr/bin/\(env[[:space:]]\)\{0,1\}perl|${perl}/bin/perl|' test/test.pl test/csq/{sort-csq,make-csq-test} misc/plot-vcfstats
-    sed -ie 's|/bin/bash|${bash}/bin/bash|' test/test.pl
-  '';
-
   meta = with stdenv.lib; {
     description = "Tools for manipulating BCF2/VCF/gVCF format, SNP and short indel sequence variants";
     license = licenses.mit;