diff --git a/pkgs/development/interpreters/python/cpython/default.nix b/pkgs/development/interpreters/python/cpython/default.nix
index e9b414ebb8db..a4149eeeb8af 100644
--- a/pkgs/development/interpreters/python/cpython/default.nix
+++ b/pkgs/development/interpreters/python/cpython/default.nix
@@ -427,7 +427,7 @@ stdenv.mkDerivation (finalAttrs: {
     # backport fix for https://github.com/python/cpython/issues/95855
     ./platform-triplet-detection.patch
   ]
-  ++ optionals (pythonAtLeast "3.14") [
+  ++ optionals (pythonAtLeast "3.14" && pythonOlder "3.15") [
     # https://github.com/python/cpython/issues/146264
     # https://github.com/python/cpython/pull/146265
     ./3.14/hacl-static-ldeps-for-static-modules.patch
diff --git a/pkgs/development/interpreters/python/default.nix b/pkgs/development/interpreters/python/default.nix
index 4e1c533bfea9..d4b32534190c 100644
--- a/pkgs/development/interpreters/python/default.nix
+++ b/pkgs/development/interpreters/python/default.nix
@@ -92,9 +92,9 @@
         major = "3";
         minor = "15";
         patch = "0";
-        suffix = "a7";
+        suffix = "b1";
       };
-      hash = "sha256-j1kMQot/DUBt+Si4Vzfno6+ijt3U0UGUEOqAloftHqc=";
+      hash = "sha256-1NUsz6HXJ+9SNfu31w+h26zxC4s3YNtiKHXaBay+Q3w=";
       inherit passthruFun;
     };