diff --git a/requirements.txt b/requirements.txt
index 84e209af29..f3efa19b13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ netaddr!=0.7.16,>=0.7.13 # BSD
 oslo.concurrency>=3.8.0 # Apache-2.0
 oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.context>=2.9.0 # Apache-2.0
-oslo.db!=4.13.1,!=4.13.2,>=4.11.0 # Apache-2.0
+oslo.db>=4.13.3 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.log>=3.11.0 # Apache-2.0
 oslo.messaging>=5.14.0 # Apache-2.0
@@ -53,7 +53,7 @@ requests!=2.12.2,>=2.10.0 # Apache-2.0
 setuptools!=24.0.0,>=16.0 # PSF/ZPL
 six>=1.9.0 # MIT
 stevedore>=1.17.1 # Apache-2.0
-taskflow>=1.26.0 # Apache-2.0
+taskflow>=2.7.0 # Apache-2.0
 cryptography!=1.3.0,>=1.0 # BSD/Apache-2.0
 urllib3>=1.15.1 # MIT
 Werkzeug>=0.7 # BSD License