diff --git a/samples/snippets/api/requirements.txt b/samples/snippets/api/requirements.txt
index edd6472f..8bb83f80 100644
--- a/samples/snippets/api/requirements.txt
+++ b/samples/snippets/api/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.4
-google-auth==1.2.1
+google-auth==1.3.0
 google-auth-httplib2==0.0.3
diff --git a/samples/snippets/movie_nl/requirements.txt b/samples/snippets/movie_nl/requirements.txt
index 02496079..82804723 100644
--- a/samples/snippets/movie_nl/requirements.txt
+++ b/samples/snippets/movie_nl/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==1.6.4
-google-auth==1.2.1
+google-auth==1.3.0
 google-auth-httplib2==0.0.3
 requests==2.18.4
diff --git a/samples/snippets/ocr_nl/requirements.txt b/samples/snippets/ocr_nl/requirements.txt
index edd6472f..8bb83f80 100644
--- a/samples/snippets/ocr_nl/requirements.txt
+++ b/samples/snippets/ocr_nl/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.4
-google-auth==1.2.1
+google-auth==1.3.0
 google-auth-httplib2==0.0.3
diff --git a/samples/snippets/syntax_triples/requirements.txt b/samples/snippets/syntax_triples/requirements.txt
index edd6472f..8bb83f80 100644
--- a/samples/snippets/syntax_triples/requirements.txt
+++ b/samples/snippets/syntax_triples/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.4
-google-auth==1.2.1
+google-auth==1.3.0
 google-auth-httplib2==0.0.3
diff --git a/samples/snippets/tutorial/requirements.txt b/samples/snippets/tutorial/requirements.txt
index edd6472f..8bb83f80 100644
--- a/samples/snippets/tutorial/requirements.txt
+++ b/samples/snippets/tutorial/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.4
-google-auth==1.2.1
+google-auth==1.3.0
 google-auth-httplib2==0.0.3