diff --git a/.gitignore b/.gitignore
index 0d7b1a5..3cb01e8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /0install-2.9.1.tar.bz2
 /0install-2.10.tar.bz2
 /0install-2.11.tar.bz2
+/0install-2.12.1.tar.bz2
diff --git a/0install.spec b/0install.spec
index dfcfaee..b3c4770 100644
--- a/0install.spec
+++ b/0install.spec
@@ -1,8 +1,8 @@
 %global cache_dir /var/cache/0install.net
 %global gettext_domain_name zero-install
 Name:           0install
-Version:        2.11
-Release:        4%{?dist}
+Version:        2.12.1
+Release:        1%{?dist}
 Summary:        A decentralized cross-distribution software installation system
 
 License:        LGPLv2+
@@ -14,12 +14,12 @@ Patch0:         %{name}-2.6-no-tests.patch
 Patch1:         %{name}-2.9.1-lib64.patch
 Patch2:         %{name}-2.10-makefile.patch
 
-BuildRequires:  ocaml >= 3.10.0
+BuildRequires:  ocaml >= 4.02.3
 BuildRequires:  ocaml-biniou-devel
 BuildRequires:  ocaml-easy-format-devel
 BuildRequires:  ocaml-findlib
 BuildRequires:  ocaml-camlp4-devel
-BuildRequires:  ocaml-curl-devel
+BuildRequires:  ocaml-curl-devel >= 0.7.9
 BuildRequires:  ocaml-extlib-devel
 BuildRequires:  ocaml-lablgtk-devel
 BuildRequires:  ocaml-lwt-devel
@@ -44,7 +44,7 @@ Requires:       hicolor-icon-theme
 ExcludeArch:     ppc64 ppc64le
 
 %if 0%{?epel}
-# Explict require ocaml-react-devel, otherwise 
+# Explict require ocaml-react-devel, otherwise
 # ocamlfind: Package `lwt.react' not found
 BuildRequires:  ocaml-react-devel
 %endif
@@ -170,6 +170,11 @@ fi
 
 
 %changelog
+* Wed Mar 29 2017 Ding-Yi Chen <dchen@redhat.com> - 2.12.1-1
+- Drop support for OCaml 4.01
+- Work around buggy GnuPG 2.1.16
+- Update dependencies
+
 * Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.11-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
 
diff --git a/sources b/sources
index 2de9b50..abbcb01 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-1cfe5845bf20fd0c0253c8ca6da7f37e  0install-2.11.tar.bz2
+SHA512 (0install-2.12.1.tar.bz2) = 314ecbff2985171bf9dd854166c0b6faf90526a0844e8861cafd7082919aa91d4009e3fad84f06956373997637c927e836aea8093c17b88358283bbc45ad763d