diff --git a/src/test-requirements.txt b/src/test-requirements.txt
index f013863..e56db9a 100644
--- a/src/test-requirements.txt
+++ b/src/test-requirements.txt
@@ -5,7 +5,7 @@ charm-tools>=2.4.4
 coverage>=3.6
 mock>=1.2
 flake8>=2.2.4,<=2.4.1
-os-testr>=0.4.1
+stestr>=2.2.0
 requests>=2.18.4
 # BEGIN: Amulet OpenStack Charm Helper Requirements
 # Liberty client lower constraints
diff --git a/test-requirements.txt b/test-requirements.txt
index ca62003..14b380e 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@
 #
 # Lint and unit test requirements
 flake8>=2.2.4,<=2.4.1
-os-testr>=0.4.1
+stestr>=2.2.0
 requests>=2.18.4
 charms.reactive
 mock>=1.2
diff --git a/tox.ini b/tox.ini
index bd66a69..151a369 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,17 +35,17 @@ commands = true
 [testenv:py34]
 basepython = python3.4
 deps = -r{toxinidir}/test-requirements.txt
-commands = ostestr {posargs}
+commands = stestr run {posargs}
 
 [testenv:py35]
 basepython = python3.5
 deps = -r{toxinidir}/test-requirements.txt
-commands = ostestr {posargs}
+commands = stestr run {posargs}
 
 [testenv:py36]
 basepython = python3.6
 deps = -r{toxinidir}/test-requirements.txt
-commands = ostestr {posargs}
+commands = stestr run {posargs}
 
 [testenv:pep8]
 basepython = python3
@@ -63,7 +63,7 @@ setenv =
     PYTHON=coverage run
 commands =
     coverage erase
-    ostestr {posargs}
+    stestr run {posargs}
     coverage combine
     coverage html -d cover
     coverage xml -o cover/coverage.xml