diff --git a/.gitignore b/.gitignore
index 8074436d..f601f707 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,4 +14,7 @@ uploads/tmp/*
 backups/*
 !backups/index.php
 !backups/.htaccess
-.idea/*
\ No newline at end of file
+.idea/*
+plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/HTML/*
+plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/URI/*
+plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/CSS/*
\ No newline at end of file
diff --git a/plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/HTML/4.15.0,f474c0a322b208e83d22d3aef33ecb184bc71d31,1.ser b/plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/HTML/4.15.0,f474c0a322b208e83d22d3aef33ecb184bc71d31,1.ser
deleted file mode 100644
index e2c42925..00000000
Binary files a/plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/HTML/4.15.0,f474c0a322b208e83d22d3aef33ecb184bc71d31,1.ser and /dev/null differ