diff --git a/ceilometer/compute/virt/libvirt/utils.py b/ceilometer/compute/virt/libvirt/utils.py
index 79684ea3e8..93fe11b6f1 100644
--- a/ceilometer/compute/virt/libvirt/utils.py
+++ b/ceilometer/compute/virt/libvirt/utils.py
@@ -108,7 +108,8 @@ def is_disconnection_exception(e):
 
 retry_on_disconnect = tenacity.retry(
     retry=tenacity.retry_if_exception(is_disconnection_exception),
-    stop=tenacity.stop_after_attempt(2))
+    stop=tenacity.stop_after_attempt(3),
+    wait=tenacity.wait_exponential(multiplier=3, min=1, max=60))
 
 
 def raise_nodata_if_unsupported(method):
diff --git a/lower-constraints.txt b/lower-constraints.txt
index df38213356..0c44794a96 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -41,7 +41,7 @@ requests-aws==0.1.4
 six==1.10.0
 stestr==2.0.0
 stevedore==3.0.0
-tenacity==4.12.0
+tenacity==6.3.1
 testresources==2.0.1
 testscenarios==0.4
 testtools==2.2.0
diff --git a/requirements.txt b/requirements.txt
index 3713e08ba0..db67736593 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ python-cinderclient>=3.3.0  # Apache-2.0
 PyYAML>=5.1 # MIT
 requests!=2.9.0,>=2.8.1 # Apache-2.0
 stevedore>=1.20.0 # Apache-2.0
-tenacity>=4.12.0  # Apache-2.0
+tenacity>=6.3.1,<7.0.0  # Apache-2.0
 tooz[zake]>=1.47.0 # Apache-2.0
 os-xenapi>=0.3.3 # Apache-2.0
 oslo.cache>=1.26.0 # Apache-2.0