diff --git a/.gitignore b/.gitignore
index 581c4f8..4235553 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /eigen-3.0.4.tar.bz2
 /eigen-3.0.5.tar.bz2
 /eigen-3.0.6.tar.bz2
+/eigen-3.1.2.tar.bz2
diff --git a/sources b/sources
index 006400b..fc9c2a6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-e107cc39111bc6a616d685693cd9e529  eigen-3.0.6.tar.bz2
+e9c081360dde5e7dcb8eba3c8430fde2  eigen-3.1.2.tar.bz2