diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..4496146
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,7 @@
+<constraints>
+  <hardware>
+    <disk>
+      <size unit="G">5</size>
+    </disk>
+  </hardware>
+</constraints>
diff --git a/google-noto-fonts.changes b/google-noto-fonts.changes
index 703cf2d..2d55ae3 100644
--- a/google-noto-fonts.changes
+++ b/google-noto-fonts.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Jan  8 12:56:45 UTC 2016 - i@marguerite.su
+
+- add _constraints, need at least 4.5GB disk space
+
 -------------------------------------------------------------------
 Tue Jan  5 10:34:16 UTC 2016 - fcrozat@suse.com