diff --git a/source/Snapshotter/AggregationHandler/Database/IncidentRecord.php b/source/Snapshotter/AggregationHandler/Database/IncidentRecord.php
index f193755..6c41b72 100644
--- a/source/Snapshotter/AggregationHandler/Database/IncidentRecord.php
+++ b/source/Snapshotter/AggregationHandler/Database/IncidentRecord.php
@@ -43,7 +43,7 @@ class IncidentRecord extends Record
         'status'              => IncidentStatus::class,
 
         //exception fields
-        'exception_hash'      => 'string',
+        'exception_hash'      => 'string(128)',
         'exception_source'    => 'longText, nullable',
         'exception_teaser'    => 'string',
         'exception_classname' => 'string',
diff --git a/source/Snapshotter/AggregationHandler/Database/SnapshotRecord.php b/source/Snapshotter/AggregationHandler/Database/SnapshotRecord.php
index 9fc2509..d899e0c 100644
--- a/source/Snapshotter/AggregationHandler/Database/SnapshotRecord.php
+++ b/source/Snapshotter/AggregationHandler/Database/SnapshotRecord.php
@@ -36,7 +36,7 @@ class SnapshotRecord extends Record
         'suppression'    => 'bool',
 
         //exception teaser
-        'exception_hash' => 'string',
+        'exception_hash' => 'string(128)',
 
         //counters
         'count_occurred' => 'int',