diff --git a/cps/editbooks.py b/cps/editbooks.py
index 9ce5ce47..06c8b12b 100755
--- a/cps/editbooks.py
+++ b/cps/editbooks.py
@@ -1123,9 +1123,10 @@ def edit_cc_data(book_id, book, to_save, cc):
                 cc_db_value = None
             if to_save[cc_string].strip():
                 if c.datatype in ['int', 'bool', 'float', "datetime", "comments"]:
-                    changed, to_save = edit_cc_data_value(book_id, book, c, to_save, cc_db_value, cc_string)
+                    change, to_save = edit_cc_data_value(book_id, book, c, to_save, cc_db_value, cc_string)
                 else:
-                    changed, to_save = edit_cc_data_string(book, c, to_save, cc_db_value, cc_string)
+                    change, to_save = edit_cc_data_string(book, c, to_save, cc_db_value, cc_string)
+                changed |= change
             else:
                 if cc_db_value is not None:
                     # remove old cc_val
diff --git a/cps/tasks/metadata_backup.py b/cps/tasks/metadata_backup.py
index 2bb2a06f..e76df95e 100644
--- a/cps/tasks/metadata_backup.py
+++ b/cps/tasks/metadata_backup.py
@@ -173,10 +173,13 @@ class TaskBackupMetadata(CalibreTask):
 
         date = etree.SubElement(metadata, PURL + "date", nsmap=NSMAP)
         date.text = '{d.year:04}-{d.month:02}-{d.day:02}T{d.hour:02}:{d.minute:02}:{d.second:02}'.format(d=book.pubdate)
-        if book.comments:
+        if book.comments and book.comments[0].text:
             for b in book.comments:
                 description = etree.SubElement(metadata, PURL + "description", nsmap=NSMAP)
                 description.text = b.text
+        for b in book.publishers:
+            publisher = etree.SubElement(metadata, PURL + "publisher", nsmap=NSMAP)
+            publisher.text = str(b.name)
         if not book.languages:
             language = etree.SubElement(metadata, PURL + "language", nsmap=NSMAP)
             language.text = self.export_language
@@ -198,6 +201,10 @@ class TaskBackupMetadata(CalibreTask):
             etree.SubElement(metadata, "meta", name="calibre:series_index",
                              content=str(book.series_index),
                              nsmap=NSMAP)
+        if len(book.ratings) and book.ratings[0].rating > 0:
+            etree.SubElement(metadata, "meta", name="calibre:rating",
+                             content=str(book.ratings[0].rating),
+                             nsmap=NSMAP)
         etree.SubElement(metadata, "meta", name="calibre:timestamp",
                          content='{d.year:04}-{d.month:02}-{d.day:02}T{d.hour:02}:{d.minute:02}:{d.second:02}'.format(
                              d=book.timestamp),
@@ -211,8 +218,8 @@ class TaskBackupMetadata(CalibreTask):
             extra = None
             cc_entry = getattr(book, "custom_column_" + str(cc.id))
             if cc_entry.__len__():
-                value = cc_entry[0].get("value")
-                extra = cc_entry[0].get("extra")
+                value = cc_entry[0].value
+                extra = cc_entry[0].extra if hasattr(cc_entry[0], "extra") else None
             etree.SubElement(metadata, "meta", name="calibre:user_metadata:#{}".format(cc.label),
                              content=cc.to_json(value, extra, sequence),
                              nsmap=NSMAP)
diff --git a/setup.cfg b/setup.cfg
index 9c772414..c349fb0e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -47,9 +47,9 @@ install_requires =
 	backports_abc>=0.4
 	Flask>=1.0.2,<2.3.0
 	iso-639>=0.4.5,<0.5.0
-	PyPDF==3.4.0
+	PyPDF>=3.0.0,<3.6.0
 	pytz>=2016.10
-	requests>=2.11.1,<2.28.0
+	requests>=2.11.1,<2.29.0
 	SQLAlchemy>=1.3.0,<2.0.0
 	tornado>=4.1,<6.3
 	Wand>=0.4.4,<0.7.0
@@ -58,7 +58,7 @@ install_requires =
 	flask-wtf>=0.14.2,<1.2.0
 	chardet>=3.0.0,<4.1.0
 	advocate>=1.0.0,<1.1.0
-	Flask-Limiter>=2.3.0,<3.3.0
+	Flask-Limiter>=2.3.0,<3.4.0
 	
 
 [options.extras_require]
@@ -95,7 +95,7 @@ metadata =
 	beautifulsoup4>=4.0.1,<4.12.0
 	cchardet>=2.0.0,<2.2.0
 comics = 
-	natsort>=2.2.0,<8.3.0
+	natsort>=2.2.0,<8.4.0
 	comicapi>=2.2.0,<2.3.0
 kobo = 
 	jsonschema>=3.2.0,<4.18.0