diff --git a/linux/reproducibility/Dockerfile b/linux/reproducibility/Dockerfile
index a6b0cb8f9..b30ed33ae 100644
--- a/linux/reproducibility/Dockerfile
+++ b/linux/reproducibility/Dockerfile
@@ -14,65 +14,13 @@ USER user
 ENV USER user
 WORKDIR /home/user
 
-#create the shell config
-RUN echo "{ pkgs ? import <nixpkgs> {} }: \n\
-with pkgs; \n\
-\n\
-stdenvNoCC.mkDerivation { \n\
-\tname = \"sgx-build-nix\"; \n\
-\tbuildInputs = [ \n\
-\t\t/nix/store/raiq8qv61rc66arg3vzyfr9kw83s7dwv-autoconf-2.69 \n\
-\t\t/nix/store/7bsq9c4z657hddv60hpks48ws699y0fc-automake-1.16.1 \n\
-\t\t/nix/store/idj0yrdlk8x49f3gyl4sb8divwhfgjvp-libtool-2.4.6 \n\
-\t\t/nix/store/68yb6ams241kf5pjyxiwd7a98xxcbx0r-ocaml-4.06.1 \n\
-\t\t/nix/store/ncqmw9iybd6iwxd4yk1x57gvs76k1sq4-ocamlbuild-0.12.0 \n\
-\t\t/nix/store/9dkhfaw1qsmvw4rv1z1fqgwhfpbdqrn0-file-5.35 \n\
-\t\t/nix/store/vs700jsqx2465qr0x78zcmgiii0890n3-cmake-3.15.5 \n\
-\t\t/nix/store/d0fv0g4vcv4s0ysa81pn9sf6fy4zzjcv-gnum4-1.4.18 \n\
-\t\t/nix/store/ljvpvjh36h9x2aaqzaby5clclq4mgdmc-openssl-1.1.1b \n\
-\t\t/nix/store/0klr6d4k2g0kabkamfivg185wpx8biqv-openssl-1.1.1b-dev \n\
-\t\t/nix/store/yg76yir7rkxkfz6p77w4vjasi3cgc0q6-gnumake-4.2.1 \n\
-\t\t/nix/store/5lyvydxv0w4f2s1ba84pjlbpvqkgn1ni-linux-headers-4.19.16 \n\
-\t\t/nix/store/681354n3k44r8z90m35hm8945vsp95h1-glibc-2.27 \n\
-\t\t/nix/store/1kl6ms8x56iyhylb2r83lq7j3jbnix7w-binutils-2.31.1 \n\
-\t\t/nix/store/lvwq3g3093injr86lm0kp0f61k5cbpay-gcc-wrapper-8.3.0 \n\
-\t\t/nix/store/dmxxhhl5yr92pbl17q1szvx34jcbzsy8-texinfo-6.5 \n\
-\t\t/nix/store/g6c80c9s2hmrk7jmkp9przi83jpcs8c6-bison-3.5.4 \n\
-\t\t/nix/store/qh2ppjlz4yq65cl0vs0m2h57x2cjlwm4-flex-2.6.4 \n\
-\t]; \n\
-\n\
-\tshellHook = '' \n\
-\techo \"SGX build enviroment\" \n\
-\t''; \n\
-} \n\
-" > /home/user/shell.nix
-
 #install the required software
 RUN touch .bash_profile \
 && curl https://nixos.org/releases/nix/nix-2.2.1/install | sh \
 && . /home/user/.nix-profile/etc/profile.d/nix.sh \
-&& nix-env -i /nix/store/raiq8qv61rc66arg3vzyfr9kw83s7dwv-autoconf-2.69 \
-&& nix-env -i /nix/store/7bsq9c4z657hddv60hpks48ws699y0fc-automake-1.16.1 \
-&& nix-env -i /nix/store/idj0yrdlk8x49f3gyl4sb8divwhfgjvp-libtool-2.4.6 \
-&& nix-env -i /nix/store/68yb6ams241kf5pjyxiwd7a98xxcbx0r-ocaml-4.06.1 \
-&& nix-env -i /nix/store/ncqmw9iybd6iwxd4yk1x57gvs76k1sq4-ocamlbuild-0.12.0 \
-&& nix-env -i /nix/store/9dkhfaw1qsmvw4rv1z1fqgwhfpbdqrn0-file-5.35 \
-&& nix-env -i /nix/store/vs700jsqx2465qr0x78zcmgiii0890n3-cmake-3.15.5 \
-&& nix-env -i /nix/store/d0fv0g4vcv4s0ysa81pn9sf6fy4zzjcv-gnum4-1.4.18 \
-&& nix-env -i /nix/store/ljvpvjh36h9x2aaqzaby5clclq4mgdmc-openssl-1.1.1b \
-&& nix-env -i /nix/store/0klr6d4k2g0kabkamfivg185wpx8biqv-openssl-1.1.1b-dev \
-&& nix-env -i /nix/store/yg76yir7rkxkfz6p77w4vjasi3cgc0q6-gnumake-4.2.1 \
-&& nix-env -i /nix/store/5lyvydxv0w4f2s1ba84pjlbpvqkgn1ni-linux-headers-4.19.16 \
-&& nix-env -i /nix/store/681354n3k44r8z90m35hm8945vsp95h1-glibc-2.27 \
-&& nix-env -i /nix/store/1kl6ms8x56iyhylb2r83lq7j3jbnix7w-binutils-2.31.1 \
-&& nix-env --set-flag priority 10 binutils-2.31.1 \
-&& nix-env -i /nix/store/lvwq3g3093injr86lm0kp0f61k5cbpay-gcc-wrapper-8.3.0 \
-&& nix-env -i /nix/store/dmxxhhl5yr92pbl17q1szvx34jcbzsy8-texinfo-6.5 \
-&& nix-env -i /nix/store/g6c80c9s2hmrk7jmkp9przi83jpcs8c6-bison-3.5.4 \
-&& nix-env -i /nix/store/qh2ppjlz4yq65cl0vs0m2h57x2cjlwm4-flex-2.6.4 
-
+&& nix-env -i /nix/store/681354n3k44r8z90m35hm8945vsp95h1-glibc-2.27
 
+COPY shell.nix /home/user/
 #config nix-shell
 RUN . /home/user/.nix-profile/etc/profile.d/nix.sh \
 && nix-shell
-
diff --git a/linux/reproducibility/shell.nix b/linux/reproducibility/shell.nix
new file mode 100644
index 000000000..9bcd7e083
--- /dev/null
+++ b/linux/reproducibility/shell.nix
@@ -0,0 +1,38 @@
+{ pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/10e61bf5be57736035ec7a804cb0bf3d083bf2cf.tar.gz") {} }:
+with pkgs;
+
+stdenvNoCC.mkDerivation {
+  name = "sgx-build-nix";
+  buildInputs = [
+    autoconf
+    automake
+    libtool
+    ocaml
+    ocamlPackages.ocamlbuild
+    file
+    cmake
+    gnum4
+    openssl
+    gnumake
+    linuxHeaders
+    #glibc
+    /nix/store/681354n3k44r8z90m35hm8945vsp95h1-glibc-2.27
+    binutils-unwrapped
+    #/nix/store/1kl6ms8x56iyhylb2r83lq7j3jbnix7w-binutils-2.31.1
+    gcc8
+    #/nix/store/lvwq3g3093injr86lm0kp0f61k5cbpay-gcc-wrapper-8.3.0
+    texinfo
+    bison
+    flex
+    perl
+    python3
+    which
+    git
+  ];
+  dontBuild = true;
+  dontInstall = true;
+  dontFixup = true;
+  shellHook = ''
+  echo "SGX build enviroment"
+  '';
+}