diff --git a/pkgs/development/tools/py-spy/default.nix b/pkgs/development/tools/py-spy/default.nix
index 8ac80ee1dade..8522333ef9db 100644
--- a/pkgs/development/tools/py-spy/default.nix
+++ b/pkgs/development/tools/py-spy/default.nix
@@ -9,16 +9,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "py-spy";
-  version = "0.3.14";
+  version = "0.3.14-unstable-2024-02-27";
 
   src = fetchFromGitHub {
     owner = "benfred";
     repo = "py-spy";
-    rev = "refs/tags/v${version}";
-    hash = "sha256-NciyzKiDKIMeuHhTjzmHIc3dYW4AniuCNjZugm4hMss=";
+    rev = "8dd54929106916a3c961cc57c1172793ce126180";
+    hash = "sha256-rrngOqlXIJXbh3A7OBEcgoakZyyuvlHHXhWo3/1BRpY=";
   };
 
-  cargoHash = "sha256-nm+44YWSJOOg9a9d8b3APXW50ThV3iA2C/QsJMttscE=";
+  cargoHash = "sha256-gNnuuq2cz168Gaw+gL2nJ8EC32BMPu9DgnRzIh1hGKk=";
 
   # error: linker `arm-linux-gnueabihf-gcc` not found
   postPatch = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 822c8af8d316..1e361ef82213 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11973,7 +11973,10 @@ with pkgs;
     pythonPackages = python3Packages;
   };
 
-  py-spy = darwin.apple_sdk_11_0.callPackage ../development/tools/py-spy { };
+  py-spy = darwin.apple_sdk_11_0.callPackage ../development/tools/py-spy {
+    # https://github.com/benfred/py-spy/issues/633
+    python3 = python311;
+  };
 
   pydeps = with python3Packages; toPythonApplication pydeps;