diff --git a/backup/requirements.txt b/backup/requirements.txt
index 23b63954cf..e7fd6b90df 100644
--- a/backup/requirements.txt
+++ b/backup/requirements.txt
@@ -1,10 +1,10 @@
-oslo.config!=4.3.0,!=4.4.0;python_version>='3.0'  # Apache-2.0
-oslo.log;python_version>='3.0'  # Apache-2.0
-oslo.utils!=3.39.1,!=3.40.0,!=3.40.1;python_version>='3.0'  # Apache-2.0
-oslo.concurrency;python_version>='3.0'  # Apache-2.0
-oslo.service!=1.28.1  # Apache-2.0
-keystoneauth1  # Apache-2.0
-python-swiftclient  # Apache-2.0
-psycopg2-binary>=2.6.2 # LGPL/ZPL
-cryptography>=2.1.4  # BSD/Apache-2.0
+oslo.config!=4.3.0,!=4.4.0 # Apache-2.0
+oslo.log # Apache-2.0
+oslo.utils!=3.39.1,!=3.40.0,!=3.40.1 # Apache-2.0
+oslo.concurrency # Apache-2.0
+oslo.service!=1.28.1 # Apache-2.0
+keystoneauth1 # Apache-2.0
+python-swiftclient # Apache-2.0
+psycopg2-binary>=2.6.2  # LGPL/ZPL
+cryptography>=2.1.4 # BSD/Apache-2.0
 semantic-version>=2.7.0 # BSD