diff --git a/pkgs/development/python-modules/imap-tools/default.nix b/pkgs/development/python-modules/imap-tools/default.nix
index 3e49ffcad2c7..0fee24247912 100644
--- a/pkgs/development/python-modules/imap-tools/default.nix
+++ b/pkgs/development/python-modules/imap-tools/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "imap-tools";
-  version = "1.12.1";
+  version = "1.13.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "ikvk";
     repo = "imap_tools";
     tag = "v${version}";
-    hash = "sha256-VNH3aUqIa7hSJr6A7SJUSad1JkKD1D0QZ3WKQuOQoeE=";
+    hash = "sha256-1BcSF40yUbOvOVDsoqS4AXRU2GZ1a3f9p8Xz7crsfwc=";
   };
 
   build-system = [ setuptools ];