diff --git a/CHANGELOG.md b/CHANGELOG.md
index 108b0e2..4258d9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 * Detect when a file has expired and raise a ``UserWarning``
 * Add Travis CI badge on README.
 * Warn user when there's a download error. Expiration date file won't be modified if at least one of the downloads has failed.
+* Added a test to check if the current files are about to expire (45 days from now). Travis CI would run a monthly job and eventually report when it has failed, so actions can be done to refresh the files and "unbreak" the library.
 
 ## 0.0.2 (2019-08-23)
 
diff --git a/tests/test_expiration_date.py b/tests/test_expiration_date.py
index 4646da3..98ecebe 100644
--- a/tests/test_expiration_date.py
+++ b/tests/test_expiration_date.py
@@ -1,7 +1,7 @@
 import mock
-from datetime import date
-from datetime import timedelta
+from datetime import date, timedelta
 from skyfield_data import get_skyfield_data_path
+from skyfield_data.expiration_data import EXPIRATIONS
 
 
 @mock.patch('skyfield_data.expirations.get_all')
@@ -30,3 +30,13 @@ def test_expiration_deltat_yesterday(mocked_exp):
     with mock.patch('warnings.warn') as mocked_warn:
         get_skyfield_data_path()
     assert mocked_warn.call_count == 1
+
+
+def test_current_expiration_date():
+    # Filter all files that would expire in 45 days
+    expired = {
+        k: v for k, v in EXPIRATIONS.items()
+        if date.today() >= v - timedelta(days=45)
+    }
+    assert not expired, \
+        "{} files(s) are about to expire: {}".format(len(expired), expired)