diff --git a/global-requirements.txt b/global-requirements.txt
index 322d1266ed..e88fbc3fd2 100644
--- a/global-requirements.txt
+++ b/global-requirements.txt
@@ -501,3 +501,4 @@ zipp;python_version>='3.6'  # MIT
 # NOTE(prometheanfire): python3 caps, are not approved for use in OpenStack
 gitdb  # BSD
 gitdb2  # BSD
+toml!=0.10.1  # Apache-2.0
diff --git a/upper-constraints.txt b/upper-constraints.txt
index cf3370e3d8..ed52f7f394 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -247,7 +247,7 @@ retryz===0.1.9
 pluggy===0.13.1
 coverage===5.2.1
 freezegun===0.3.15
-toml===0.10.1
+toml===0.10.0
 pyperclip===1.8.0
 cassandra-driver===3.24.0
 XStatic-Angular-Schema-Form===0.8.13.0