diff --git a/pkgs/development/python-modules/bitcoinlib/default.nix b/pkgs/development/python-modules/bitcoinlib/default.nix
index f91ade7d10b3..e1cd7bd66a1b 100644
--- a/pkgs/development/python-modules/bitcoinlib/default.nix
+++ b/pkgs/development/python-modules/bitcoinlib/default.nix
@@ -2,7 +2,7 @@
 
 buildPythonPackage rec {
   pname = "bitcoinlib";
-  version = "0.11.2";
+  version = "0.12.0";
 
   disabled = !isPy3k;
 
@@ -10,7 +10,7 @@ buildPythonPackage rec {
     owner = "petertodd";
     repo = "python-bitcoinlib";
     rev = "refs/tags/python-bitcoinlib-v${version}";
-    sha256 = "sha256-/VgCTN010W/Svdrs0mGA8W1YZnyTHhcaWJKgP/c8CN8=";
+    sha256 = "sha256-jguybrH86z6NWLaucQEYjvH2Gkoh3Aqh/PLZ6l8Qel4=";
   };
 
   postPatch = ''
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index be3ea429793e..43dec33a3c75 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1260,9 +1260,7 @@ self: super: with self; {
 
   bitbox02 = callPackage ../development/python-modules/bitbox02 { };
 
-  bitcoinlib = callPackage ../development/python-modules/bitcoinlib {
-    openssl = pkgs.openssl_1_1;
-  };
+  bitcoinlib = callPackage ../development/python-modules/bitcoinlib { };
 
   bitcoin-utils-fork-minimal = callPackage ../development/python-modules/bitcoin-utils-fork-minimal { };