diff --git a/appengine/flexible/scipy/requirements.txt b/appengine/flexible/scipy/requirements.txt
index b73a337f51cc..820fa456a7bc 100644
--- a/appengine/flexible/scipy/requirements.txt
+++ b/appengine/flexible/scipy/requirements.txt
@@ -3,6 +3,6 @@ gunicorn==20.1.0
 imageio==2.9.0
 numpy==1.20.0; python_version >= '3.7'
 numpy==1.19.5; python_version < '3.7'
-pillow==8.3.2
+pillow==8.4.0
 scipy==1.6.1; python_version >= '3.7'
 scipy==1.5.4; python_version < '3.7'
diff --git a/dataflow/gpu-examples/tensorflow-landsat/requirements.txt b/dataflow/gpu-examples/tensorflow-landsat/requirements.txt
index 47905935ff40..7a36899d331a 100644
--- a/dataflow/gpu-examples/tensorflow-landsat/requirements.txt
+++ b/dataflow/gpu-examples/tensorflow-landsat/requirements.txt
@@ -1,4 +1,4 @@
-Pillow==8.3.2
+Pillow==8.4.0
 apache-beam[gcp]==2.31.0
 rasterio==1.2.9
 tensorflow==2.6.0
diff --git a/people-and-planet-ai/image-classification/requirements.txt b/people-and-planet-ai/image-classification/requirements.txt
index 16ee98c73bf3..016cb0a5befc 100644
--- a/people-and-planet-ai/image-classification/requirements.txt
+++ b/people-and-planet-ai/image-classification/requirements.txt
@@ -1,4 +1,4 @@
-Pillow==8.3.2
+Pillow==8.4.0
 apache-beam[gcp]==2.31.0
 google-cloud-aiplatform==1.1.1
 google-cloud-bigquery==2.28.1 # Indirect dependency, but there is a version conflict that causes pip to hang unless we constraint this.
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