diff --git a/global-requirements.txt b/global-requirements.txt
index 7b1f8cf750..52dd94581a 100644
--- a/global-requirements.txt
+++ b/global-requirements.txt
@@ -288,7 +288,8 @@ gnocchiclient  # Apache-2.0
 tricircleclient<1.0.0;python_version=='2.7'  # Apache-2.0
 tricircleclient;python_version>='3.6'  # Apache-2.0
 python-barbicanclient  # Apache-2.0
-python-blazarclient  # Apache-2.0
+python-blazarclient<3.0.0;python_version=='2.7'  # Apache-2.0
+python-blazarclient;python_version>='3.6'  # Apache-2.0
 python-ceilometerclient  # Apache-2.0
 python-cinderclient!=4.0.0,<6.0.0;python_version=='2.7'  # Apache-2.0
 python-cinderclient!=4.0.0;python_version>='3.6'  # Apache-2.0
diff --git a/upper-constraints.txt b/upper-constraints.txt
index 2388a34757..b69b91562b 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -713,7 +713,7 @@ futurist===2.0.0;python_version=='3.7'
 jsonschema===3.2.0
 sphinxcontrib-devhelp===1.0.1;python_version=='3.6'
 sphinxcontrib-devhelp===1.0.1;python_version=='3.7'
-python-blazarclient===2.2.1
+python-blazarclient===3.0.0
 alembic===1.3.3
 glance-store===1.1.0
 sphinxcontrib-programoutput===0.15