diff --git a/appengine/standard/migration/incoming/requirements-test.txt b/appengine/standard/migration/incoming/requirements-test.txt
index 70739fb1b80..84a992142d2 100644
--- a/appengine/standard/migration/incoming/requirements-test.txt
+++ b/appengine/standard/migration/incoming/requirements-test.txt
@@ -1,2 +1,2 @@
-pytest>=4.6.10
-webtest>=2.0.35
\ No newline at end of file
+pytest==4.6.11; python_version < '3.0'
+webtest==2.0.35
diff --git a/appengine/standard/migration/ndb/overview/requirements-test.txt b/appengine/standard/migration/ndb/overview/requirements-test.txt
index 28f630befbc..385c9b2188d 100644
--- a/appengine/standard/migration/ndb/overview/requirements-test.txt
+++ b/appengine/standard/migration/ndb/overview/requirements-test.txt
@@ -1 +1 @@
-pytest>=4.6.9
+pytest==4.6.11; python_version < '3.0'
diff --git a/appengine/standard/migration/storage/requirements-test.txt b/appengine/standard/migration/storage/requirements-test.txt
index 7d367f2cfdb..385c9b2188d 100644
--- a/appengine/standard/migration/storage/requirements-test.txt
+++ b/appengine/standard/migration/storage/requirements-test.txt
@@ -1 +1 @@
-pytest>=4.6.10
+pytest==4.6.11; python_version < '3.0'
diff --git a/appengine/standard/migration/urlfetch/async/requirements-test.txt b/appengine/standard/migration/urlfetch/async/requirements-test.txt
index 7d367f2cfdb..385c9b2188d 100644
--- a/appengine/standard/migration/urlfetch/async/requirements-test.txt
+++ b/appengine/standard/migration/urlfetch/async/requirements-test.txt
@@ -1 +1 @@
-pytest>=4.6.10
+pytest==4.6.11; python_version < '3.0'
diff --git a/appengine/standard/migration/urlfetch/requests/requirements-test.txt b/appengine/standard/migration/urlfetch/requests/requirements-test.txt
index 7d367f2cfdb..385c9b2188d 100644
--- a/appengine/standard/migration/urlfetch/requests/requirements-test.txt
+++ b/appengine/standard/migration/urlfetch/requests/requirements-test.txt
@@ -1 +1 @@
-pytest>=4.6.10
+pytest==4.6.11; python_version < '3.0'
diff --git a/appengine/standard_python37/migration/urlfetch/requirements-test.txt b/appengine/standard_python37/migration/urlfetch/requirements-test.txt
index 8495d65e2e7..79738af5f26 100644
--- a/appengine/standard_python37/migration/urlfetch/requirements-test.txt
+++ b/appengine/standard_python37/migration/urlfetch/requirements-test.txt
@@ -1 +1 @@
-pytest>=5.4.2
+pytest==5.4.3
diff --git a/monitoring/api/v3/uptime-check-client/requirements-test.txt b/monitoring/api/v3/uptime-check-client/requirements-test.txt
index 598851516f0..678aa129fb4 100644
--- a/monitoring/api/v3/uptime-check-client/requirements-test.txt
+++ b/monitoring/api/v3/uptime-check-client/requirements-test.txt
@@ -1,2 +1,2 @@
-backoff===1.10.0
-pytest==5.3.2
+backoff==1.10.0
+pytest==5.4.3