diff --git a/.gitignore b/.gitignore
index f147616..001514b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@
 /oslo.i18n-3.15.0.tar.gz
 /oslo.i18n-3.15.1.tar.gz
 /oslo.i18n-3.15.3.tar.gz
+/oslo.i18n-3.12.0.tar.gz
diff --git a/sources b/sources
index d80c830..f3f4f11 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (oslo.i18n-3.15.3.tar.gz) = c934b8182a794d1ac1be200841ace597a8cc3ec770a56f8cf57c0ea2decbd14671fd474bef599f91e82e316b4a28ad2a514d017f3b7023fd6f90b978ee18f718
+SHA512 (oslo.i18n-3.12.0.tar.gz) = a19cfec1acb1461d6373ffe5c13c275ce50c4e817e613c3cccd56b90955d99088162089753fba3b3185ee44598013e965c030d011e56140f95958dc9bfec4b61