diff --git a/deploy-sam-template.sh b/deploy-sam-template.sh
index 79364b4..1954f98 100755
--- a/deploy-sam-template.sh
+++ b/deploy-sam-template.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-SHELVERY_VERSION=0.9.11
+SHELVERY_VERSION=0.9.12
 
 # set DOCKERUSERID to current user. could be changed with -u uid
 DOCKERUSERID="-u $(id -u)"
diff --git a/setup.py b/setup.py
index d98abca..5f5f66e 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup
 
-setup(name='shelvery', version='0.9.11', author='Base2Services R&D',
+setup(name='shelvery', version='0.9.12', author='Base2Services R&D',
       author_email='itsupport@base2services.com',
       url='http://github.com/base2Services/shelvery-aws-backups',
       classifiers=[
diff --git a/shelvery/__init__.py b/shelvery/__init__.py
index 19442df..5b69211 100644
--- a/shelvery/__init__.py
+++ b/shelvery/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '0.9.11'
+__version__ = '0.9.12'
 LAMBDA_WAIT_ITERATION = 'lambda_wait_iteration'
 S3_DATA_PREFIX = 'backups'
 SHELVERY_DO_BACKUP_TAGS = ['True', 'true', '1', 'TRUE']
diff --git a/shelvery/documentdb_backup.py b/shelvery/documentdb_backup.py
index acc4ab2..8d8ab4f 100644
--- a/shelvery/documentdb_backup.py
+++ b/shelvery/documentdb_backup.py
@@ -144,7 +144,7 @@ def copy_shared_backup(self, source_account: str, source_backup: BackupResource)
 
             copy_kms_key = RuntimeConfig.get_copy_kms_key_id(source_backup.tags, self)
             # if a new key is provided by config encypt the copy with the new kms key
-            if copy_kms_key is not None:
+            if copy_kms_key:
                 self.logger.info(
                     f"Snapshot {source_backup.backup_id} will be copied and encrypted with the kms key {copy_kms_key}")
                 kms_key = copy_kms_key
diff --git a/template.yaml b/template.yaml
index 6a85f0e..8183617 100644
--- a/template.yaml
+++ b/template.yaml
@@ -122,7 +122,7 @@ Resources:
       Tags:
         Name: Shelvery
         CreatedBy: Shelvery
-        ShelveryVersion: 0.9.11
+        ShelveryVersion: 0.9.12
 
       Environment:
         Variables: