diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92c4f0c..2df6e52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,17 @@
 This document contains details of the various releases and their release dates.
 Dates are in the format `yyyy-mm-dd`.
 
+## 1.3.1 - 2015-09-07
+
+## Race condition in the XPath compiler
+
+This release fixes a race condition in the XPath compiler. The
+`XPath::Compiler#compile` method would compile Procs using its own Binding, this
+in turn would lead to race conditions when using the compiled Procs
+concurrently.
+
+See commit bd48dc15cc26f4eb556068afaafd2ab18271d8d3 for more information.
+
 ## 1.3.0 - 2015-09-06
 
 ## XPath query evaluation rewritten
diff --git a/checksum/oga-1.3.1-java.gem.sha512 b/checksum/oga-1.3.1-java.gem.sha512
new file mode 100644
index 0000000..d4c6387
--- /dev/null
+++ b/checksum/oga-1.3.1-java.gem.sha512
@@ -0,0 +1 @@
+cabf9a27a9f8b3b5dcc11d249df5cfaf803e87dc0a727234e8859beb0cecfa83c6e127f6ab05bbeb44de35711278d7b16ac11d7243f8d0b6aa024004d8c8b2db
\ No newline at end of file
diff --git a/checksum/oga-1.3.1.gem.sha512 b/checksum/oga-1.3.1.gem.sha512
new file mode 100644
index 0000000..f1e313a
--- /dev/null
+++ b/checksum/oga-1.3.1.gem.sha512
@@ -0,0 +1 @@
+59f18e92426f057671d3ac30931632284f1aa0fcd3bea5c1a78928fe2ded93d58ac15d57ae335dd7dbc384b8f74d32bd7bb1790ba3c65912d5f85cd6fb5e75e4
\ No newline at end of file
diff --git a/lib/oga/version.rb b/lib/oga/version.rb
index 6537c20..0588163 100644
--- a/lib/oga/version.rb
+++ b/lib/oga/version.rb
@@ -1,3 +1,3 @@
 module Oga
-  VERSION = '1.3.0'
+  VERSION = '1.3.1'
 end # Oga