diff --git a/pkgs/development/tools/memray/default.nix b/pkgs/development/tools/memray/default.nix
index 4ca4b6cb2771..600316e295b3 100644
--- a/pkgs/development/tools/memray/default.nix
+++ b/pkgs/development/tools/memray/default.nix
@@ -8,14 +8,14 @@
 
 python3.pkgs.buildPythonApplication rec {
   pname = "memray";
-  version = "1.9.0";
+  version = "1.9.1";
   format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "bloomberg";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-fXA98kw+2NlbWTLXWK875t1RBIXH2a0SgS+0OseODKI=";
+    hash = "sha256-DaJ1Hhg7q4ckA5feUx0twOsmy28v5aBBCTUAkn43xAo=";
   };
 
   nativeBuildInputs = [