diff --git a/appengine/flexible/redis/requirements.txt b/appengine/flexible/redis/requirements.txt
index 3d18cfda2aa..de1e97deabe 100644
--- a/appengine/flexible/redis/requirements.txt
+++ b/appengine/flexible/redis/requirements.txt
@@ -1,3 +1,3 @@
 Flask==1.1.1
 gunicorn==20.0.4
-redis==3.3.11
+redis==3.4.1
diff --git a/appengine/standard_python37/redis/requirements.txt b/appengine/standard_python37/redis/requirements.txt
index ec453d8c449..4649315884b 100644
--- a/appengine/standard_python37/redis/requirements.txt
+++ b/appengine/standard_python37/redis/requirements.txt
@@ -1,2 +1,2 @@
 Flask==1.1.1
-redis==3.3.11
+redis==3.4.1
diff --git a/functions/memorystore/redis/requirements.txt b/functions/memorystore/redis/requirements.txt
index dd70cdbb0b0..ad6ab3f2870 100644
--- a/functions/memorystore/redis/requirements.txt
+++ b/functions/memorystore/redis/requirements.txt
@@ -1 +1 @@
-redis==3.3.11
+redis==3.4.1
diff --git a/memorystore/redis/requirements.txt b/memorystore/redis/requirements.txt
index 0280b5ab8e1..5b15f1a8a32 100644
--- a/memorystore/redis/requirements.txt
+++ b/memorystore/redis/requirements.txt
@@ -13,5 +13,5 @@
 # [START memorystore_requirements]
 Flask==1.1.1
 gunicorn==20.0.4
-redis==3.3.11
+redis==3.4.1
 # [END memorystore_requirements]