diff --git a/lib/KorAP/XML/TEI/Tokenizer/KorAP.pm b/lib/KorAP/XML/TEI/Tokenizer/KorAP.pm
index 1fda1c8..fb4d18b 100644
--- a/lib/KorAP/XML/TEI/Tokenizer/KorAP.pm
+++ b/lib/KorAP/XML/TEI/Tokenizer/KorAP.pm
@@ -4,7 +4,7 @@
 use warnings;
 use File::Share ':all';
 
-our $VERSION = '2.4.4';
+our $VERSION = '2.4.5-TRIAL';
 
 use constant {
   WAIT_SECS => 30
diff --git a/script/tei2korapxml b/script/tei2korapxml
index 7e57b4c..5f69098 100755
--- a/script/tei2korapxml
+++ b/script/tei2korapxml
@@ -24,7 +24,7 @@
 use KorAP::XML::TEI::Header;
 use KorAP::XML::TEI::Inline;
 
-our $VERSION = '2.4.4';
+our $VERSION = '2.4.5-TRIAL';
 
 our $VERSION_MSG = "\ntei2korapxml - v$VERSION\n";
 
@@ -88,7 +88,7 @@
 
 
 if ($required_version) {
-  $required_version =~ /^\s*(\d+\.\d+\.\d+)\s*$/;
+  $required_version =~ /^\s*(\d+\.\d+\.\d+(-TRIAL)?)\s*$/;
   if (!$1 || $1 ne $VERSION) {
     $log->error("Required version $required_version mismatches version $VERSION");
     exit(1);