diff --git a/appengine/standard/firebase/firetactoe/requirements.txt b/appengine/standard/firebase/firetactoe/requirements.txt
index 1a5ed3dd004..535f170aac2 100644
--- a/appengine/standard/firebase/firetactoe/requirements.txt
+++ b/appengine/standard/firebase/firetactoe/requirements.txt
@@ -2,4 +2,4 @@ flask==0.11.1
 requests==2.11.1
 requests_toolbelt==0.7.0
 oauth2client==4.0.0
-functools32==3.2.3-2; python_version < '3'
+functools32==3.2.3-2; python_version < "3"
diff --git a/testing/requirements-dev.txt b/testing/requirements-dev.txt
index 305082b5120..61065012a05 100644
--- a/testing/requirements-dev.txt
+++ b/testing/requirements-dev.txt
@@ -12,7 +12,7 @@ flask==0.11.1
 Flask==0.11.1
 fluent-logger==0.4.4
 funcsigs==1.0.2
-functools32==3.2.3-2; python_version < '3'
+functools32==3.2.3-2; python_version < "3"
 google-api-python-client==1.5.5
 google-cloud-bigquery==0.20.0
 google-cloud-bigtable==0.20.0