diff --git a/bazel/grpc.patch b/bazel/grpc.patch
index c8872879824c6..4608049f1bf8e 100644
--- a/bazel/grpc.patch
+++ b/bazel/grpc.patch
@@ -23,4 +23,17 @@ index 1bb970e049..81265483e9 100644
 +        "-layering_check",
      ],
  )
-
+ 
+diff --git a/src/core/lib/channel/channel_args.h b/src/core/lib/channel/channel_args.h
+index 38bb070213..b53086e680 100644
+--- a/src/core/lib/channel/channel_args.h
++++ b/src/core/lib/channel/channel_args.h
+@@ -284,7 +284,7 @@ class ChannelArgs {
+ 
+   class Value {
+    public:
+-    explicit Value(int n) : rep_(reinterpret_cast<void*>(n), &int_vtable_) {}
++    explicit Value(int n) : rep_(reinterpret_cast<void*>(static_cast<intptr_t>(n)), &int_vtable_) {}
+     explicit Value(std::string s)
+         : rep_(RefCountedString::Make(s).release(), &string_vtable_) {}
+     explicit Value(Pointer p) : rep_(std::move(p)) {}
diff --git a/bazel/repository_locations.bzl b/bazel/repository_locations.bzl
index 7ac6b0af9c6e6..060f09ad2e60e 100644
--- a/bazel/repository_locations.bzl
+++ b/bazel/repository_locations.bzl
@@ -376,12 +376,12 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "gRPC",
         project_desc = "gRPC C core library",
         project_url = "https://grpc.io",
-        version = "1.56.2",
-        sha256 = "931f07db9d48cff6a6007c1033ba6d691fe655bea2765444bc1ad974dfc840aa",
+        version = "1.59.1",
+        sha256 = "916f88a34f06b56432611aaa8c55befee96d0a7b7d7457733b9deeacbc016f99",
         strip_prefix = "grpc-{version}",
         urls = ["https://github.com/grpc/grpc/archive/v{version}.tar.gz"],
         use_category = ["dataplane_core", "controlplane"],
-        release_date = "2023-07-14",
+        release_date = "2023-10-06",
         cpe = "cpe:2.3:a:grpc:grpc:*",
         license = "Apache-2.0",
         license_url = "https://github.com/grpc/grpc/blob/v{version}/LICENSE",