diff --git a/VERSION b/VERSION
index 8351c19..60d3b2f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-14
+15
diff --git a/import-scripts/import_scripts/channel.py b/import-scripts/import_scripts/channel.py
index 4e91406..d059f9e 100644
--- a/import-scripts/import_scripts/channel.py
+++ b/import-scripts/import_scripts/channel.py
@@ -52,7 +52,7 @@ ANALYSIS = {
         },
     },
     "analyzer": {
-        "edge": {"tokenizer": "edge"},
+        "edge": {"tokenizer": "edge", "filter": ["lowercase"]},
         "lowercase": {
             "type": "custom",
             "tokenizer": "keyword",
@@ -199,9 +199,6 @@ MAPPING = {
 }
 
 
-# def field_reverse_str(field):
-
-
 def string_reverse(text):
     return text[::-1]