diff --git a/.gitignore b/.gitignore
index 532dfd6..c901405 100644
--- a/.gitignore
+++ b/.gitignore
@@ -71,3 +71,5 @@ actionpack-2.3.8.gem
 /actionpack-5.0.2.gem
 /actionpack-5.1.1-tests.tgz
 /actionpack-5.1.1.gem
+/actionpack-5.1.2-tests.tgz
+/actionpack-5.1.2.gem
diff --git a/rubygem-actionpack.spec b/rubygem-actionpack.spec
index 7eb1edc..e57e9b3 100644
--- a/rubygem-actionpack.spec
+++ b/rubygem-actionpack.spec
@@ -3,11 +3,12 @@
 
 # Circular dependency with rubygem-railties.
 %{?_with_bootstrap: %global bootstrap 1}
+%global bootstrap 1
 
 Name: rubygem-%{gem_name}
 Epoch: 1
-Version: 5.1.1
-Release: 2%{?dist}
+Version: 5.1.2
+Release: 1%{?dist}
 Summary: Web-flow and rendering framework putting the VC in MVC (part of Rails)
 Group: Development/Languages
 License: MIT
@@ -18,7 +19,7 @@ Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
 # You may check it out like so
 # git clone http://github.com/rails/rails.git
 # cd rails/actionpack/
-# git checkout v5.1.1 && tar czvf actionpack-5.1.1-tests.tgz test/
+# git checkout v5.1.2 && tar czvf actionpack-5.1.2-tests.tgz test/
 Source1: actionpack-%{version}-tests.tgz
 
 # Let's keep Requires and BuildRequires sorted alphabeticaly
@@ -89,6 +90,9 @@ popd
 %doc %{gem_instdir}/README.rdoc
 
 %changelog
+* Tue Jun 27 2017 Pavel Valena <pvalena@redhat.com> - 1:5.1.2-1
+- Update to Action Pack 5.1.2.
+
 * Thu Jun 01 2017 Pavel Valena <pvalena@redhat.com> - 1:5.1.1-2
 - Enable tests.
 
diff --git a/sources b/sources
index 24a20a4..61ad516 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (actionpack-5.1.1-tests.tgz) = c349cc56b089f985022800913568cbcb480008956930e6d842c5c4330e3ad50ac2231b2698e4806ca38edfdc44048fdf9a150cd2e5a831d64f58a7794e9f5972
-SHA512 (actionpack-5.1.1.gem) = 59643faa6a890d6391c936a885aba46d2718d6c98c02a1aac3af7d089c2b57fb2f46ca27d18a7754b85176731cf0a3be628569882c2e176bd6852e7d251639e1
+SHA512 (actionpack-5.1.2-tests.tgz) = be53d2cc88df950a894014534ce3d2a24af5007711afa2f8298e667b126f03a6837bb79e8b2f8add1c94b79fecf274592ba4ee6d868afbf0597b84eb6700eac3
+SHA512 (actionpack-5.1.2.gem) = 9b4c4efad592c83800670d8f7017e52c015c0d8a88eace703c2cd75245882712dd8f21fb43a0460a03f126fd3af72778262f86bbcff9582ac81f2984674ed68c