diff --git a/pkgs/development/python-modules/tensorboard/default.nix b/pkgs/development/python-modules/tensorboard/default.nix
index 2a7be3be31b1..f145e93f0791 100644
--- a/pkgs/development/python-modules/tensorboard/default.nix
+++ b/pkgs/development/python-modules/tensorboard/default.nix
@@ -9,9 +9,9 @@
   markdown,
   numpy,
   packaging,
+  pillow,
   protobuf,
   setuptools,
-  six,
   tensorboard-data-server,
   werkzeug,
   standard-imghdr,
@@ -21,7 +21,7 @@
 
 buildPythonPackage rec {
   pname = "tensorboard";
-  version = "2.19.0";
+  version = "2.20.0";
   format = "wheel";
 
   # tensorflow/tensorboard is built from a downloaded wheel, because
@@ -30,7 +30,7 @@ buildPythonPackage rec {
     inherit pname version format;
     dist = "py3";
     python = "py3";
-    hash = "sha256-XnG5hmOmQafOim5wsL6OGkwMRdSHYLB2ODrEdVw1uaA=";
+    hash = "sha256-ncn5eMuEwHI6z5o0XZbBhPApPRjxZruNWe4Jjmz6q6Y=";
   };
 
   pythonRelaxDeps = [
@@ -44,9 +44,9 @@ buildPythonPackage rec {
     markdown
     numpy
     packaging
+    pillow
     protobuf
     setuptools
-    six
     tensorboard-data-server
     werkzeug