diff --git a/global-requirements.txt b/global-requirements.txt
index eafe7cecac..763a266e1a 100644
--- a/global-requirements.txt
+++ b/global-requirements.txt
@@ -442,7 +442,7 @@ testrepository>=0.0.18  # Apache-2.0/BSD
 testresources>=2.0.0  # Apache-2.0/BSD
 testscenarios>=0.4  # Apache-2.0/BSD
 testtools>=2.2.0  # MIT
-trollius>=1.0  # Apache-2.0
+trollius>=1.0;python_version=='2.7'  # Apache-2.0
 ujson>=1.35  # BSD
 unittest2>=1.1.0  # BSD
 virtualbmc>=1.0.0  # Apache-2.0
diff --git a/lower-constraints.txt b/lower-constraints.txt
index 11af182654..709fd1a91b 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -214,7 +214,7 @@ dib-utils===0.0.8
 xlwt===1.3.0
 cliff===2.8.0
 os-brick===2.2.0
-trollius===1.0
+trollius===1.0;python_version=='2.7'
 scp===0.10.2
 xlrd===1.1.0
 python-zaqarclient===1.0.0
diff --git a/upper-constraints.txt b/upper-constraints.txt
index 12e76d633e..d83dfb17ea 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -200,7 +200,7 @@ passlib===1.7.1
 dib-utils===0.0.11
 cliff===2.11.0
 os-brick===2.4.0
-trollius===2.2
+trollius===2.2;python_version=='2.7'
 scp===0.10.2
 python-zaqarclient===1.9.0
 funcsigs===1.0.2;python_version=='2.7'