diff --git a/Changelog b/Changelog
index c24e531113470d0057cd1c1061c98cc03a6a9dd1..aadb884ed396846ee8a3a7ab4444fd5ba3768bc2 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,10 @@
+Travel::Status::DE::IRIS 1.20 - Mon Aug 06 2018
+
+    * Use schedule instead of realtime data when determining whether a train
+      falls within the lookahead time frame. This fixes severely delayed
+      trains being ignored even if their scheduled arrival/departure is very
+      soon or has already passed.
+
 Travel::Status::DE::IRIS 1.19 - Wed Aug 01 2018
 
     * db-iris: Fix "-ot" ignoring arrival delay if departure is on time
diff --git a/bin/db-iris b/bin/db-iris
index 5d84fb9e0f87e56e28da512b1f62b4d1f8f73aa4..537577f66e73ebf29a1fc4cd2aefa26451a88104 100755
--- a/bin/db-iris
+++ b/bin/db-iris
@@ -6,7 +6,7 @@ use utf8;
 
 no if $] >= 5.018, warnings => 'experimental::smartmatch';
 
-our $VERSION = '1.19';
+our $VERSION = '1.20';
 
 use DateTime;
 use DateTime::Format::Strptime;
@@ -535,7 +535,7 @@ I<station>
 
 =head1 VERSION
 
-version 1.19
+version 1.20
 
 =head1 DESCRIPTION
 
diff --git a/lib/Travel/Status/DE/IRIS.pm b/lib/Travel/Status/DE/IRIS.pm
index 21bc5993fc9147d82764281c9c9f5b2acce56f82..f9a05eecc3b39d398ef929953b5630627bda0a7f 100644
--- a/lib/Travel/Status/DE/IRIS.pm
+++ b/lib/Travel/Status/DE/IRIS.pm
@@ -6,7 +6,7 @@ use 5.014;
 
 no if $] >= 5.018, warnings => 'experimental::smartmatch';
 
-our $VERSION = '1.19';
+our $VERSION = '1.20';
 
 use Carp qw(confess cluck);
 use DateTime;
@@ -576,7 +576,7 @@ Travel::Status::DE::IRIS - Interface to IRIS based web departure monitors.
 
 =head1 VERSION
 
-version 1.19
+version 1.20
 
 =head1 DESCRIPTION
 
diff --git a/lib/Travel/Status/DE/IRIS/Result.pm b/lib/Travel/Status/DE/IRIS/Result.pm
index 4f5a0ae3c66375e3bdf64650ab63853344e45508..e5f00ab5b4824ec1d04c2948f732dd3616dded4a 100644
--- a/lib/Travel/Status/DE/IRIS/Result.pm
+++ b/lib/Travel/Status/DE/IRIS/Result.pm
@@ -15,7 +15,7 @@ use List::Compare;
 use List::MoreUtils qw(none uniq firstval);
 use Scalar::Util qw(weaken);
 
-our $VERSION = '1.19';
+our $VERSION = '1.20';
 
 my %translation = (
 	2  => 'Polizeiliche Ermittlung',
@@ -801,7 +801,7 @@ arrival/departure received by Travel::Status::DE::IRIS
 
 =head1 VERSION
 
-version 1.19
+version 1.20
 
 =head1 DESCRIPTION
 
diff --git a/lib/Travel/Status/DE/IRIS/Stations.pm b/lib/Travel/Status/DE/IRIS/Stations.pm
index b4ef464533b4cc31f4281ebff6c37ce585beca39..f954478bc38325d91c166d6e85554cd2bdcc2f9d 100644
--- a/lib/Travel/Status/DE/IRIS/Stations.pm
+++ b/lib/Travel/Status/DE/IRIS/Stations.pm
@@ -17,7 +17,7 @@ use Text::LevenshteinXS qw(distance);
 
 # TODO switch to Text::Levenshtein::XS once AUR/Debian packages become available
 
-our $VERSION = '1.19';
+our $VERSION = '1.20';
 
 my @stations = (