diff --git a/docker/requirements.txt b/docker/requirements.txt
index e2ce163..f584a69 100644
--- a/docker/requirements.txt
+++ b/docker/requirements.txt
@@ -1,7 +1,7 @@
 matplotlib
 numpy
 pandas==0.25.0
-Pillow==6.1.0
+Pillow==8.1.1
 pyserial==3.4
 PySimpleGUI==4.1.0
 scipy
diff --git a/requirements.txt b/requirements.txt
index 11fa9b4..991ce1a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 matplotlib
 numpy
 pandas==0.25.0
-Pillow==6.1.0
+Pillow==8.1.1
 pyserial==3.4
 PySimpleGUI==4.11.0
 scipy