diff --git a/Changes b/Changes
index c09b288..ce13dac 100755
--- a/Changes
+++ b/Changes
@@ -1,3 +1,5 @@
+        - Increased max query length from 1000 to 4096 characters. (kupietz)
+
 0.45 2022-05-20
         - Added confidential client support to OAuth. (diewald)
         - Added OAuth client authorization handling. (diewald)
diff --git a/lib/Kalamar/Controller/Search.pm b/lib/Kalamar/Controller/Search.pm
index b602bec..c2f48c0 100644
--- a/lib/Kalamar/Controller/Search.pm
+++ b/lib/Kalamar/Controller/Search.pm
@@ -30,7 +30,7 @@
   # Validate user input
   my $v = $c->validation;
 
-  $v->optional('q', 'trim')->size(1,1000);
+  $v->optional('q', 'trim')->size(1,4096);
   $v->optional('ql')->in(qw/poliqarp cosmas2 annis cql fcsql/);
   $v->optional('collection', 'trim'); # Legacy
   $v->optional('cq', 'trim');         # New