diff --git a/pkgs/development/python-modules/imageio/default.nix b/pkgs/development/python-modules/imageio/default.nix
index f657f73a7e41..5a0226f0d3d7 100644
--- a/pkgs/development/python-modules/imageio/default.nix
+++ b/pkgs/development/python-modules/imageio/default.nix
@@ -16,11 +16,11 @@
 
 buildPythonPackage rec {
   pname = "imageio";
-  version = "2.19.3";
+  version = "2.21.3";
   disabled = isPy27;
 
   src = fetchPypi {
-    sha256 = "sha256-DJ34DkLy7mi+qSAB5/z2EqoUmRDv4EDrdX9c4yMlCuE=";
+    sha256 = "sha256-sQpYPIMcky9K++qehAMILSp2sdMNdVW3d863BEGJCzw=";
     inherit pname version;
   };