diff --git a/bazel/external/quiche.BUILD b/bazel/external/quiche.BUILD
index dcf0ca5bd010..8a79f16cbb52 100644
--- a/bazel/external/quiche.BUILD
+++ b/bazel/external/quiche.BUILD
@@ -3054,7 +3054,6 @@ envoy_quic_cc_library(
         ":quic_core_alarm_lib",
         ":quic_core_crypto_encryption_lib",
         ":quic_core_http_server_initiated_spdy_stream_lib",
-        ":quic_core_http_spdy_server_push_utils_header",
         ":quic_core_http_spdy_session_lib",
         ":quic_core_packets_lib",
         ":quic_core_qpack_qpack_streams_lib",
@@ -3131,15 +3130,6 @@ envoy_quic_cc_library(
     ],
 )
 
-envoy_quic_cc_library(
-    name = "quic_core_http_spdy_server_push_utils_header",
-    hdrs = ["quiche/quic/core/http/spdy_server_push_utils.h"],
-    deps = [
-        ":quic_platform_base",
-        ":spdy_core_http2_header_block_lib",
-    ],
-)
-
 envoy_quic_cc_library(
     name = "quic_core_http_spdy_session_lib",
     srcs = [
diff --git a/bazel/repository_locations.bzl b/bazel/repository_locations.bzl
index c4678a20728e..d6ab90ba6707 100644
--- a/bazel/repository_locations.bzl
+++ b/bazel/repository_locations.bzl
@@ -1123,12 +1123,12 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "QUICHE",
         project_desc = "QUICHE (QUIC, HTTP/2, Etc) is Google‘s implementation of QUIC and related protocols",
         project_url = "https://github.com/google/quiche",
-        version = "92faee243386c6234f39ab5f3debbbd480cfcff6",
-        sha256 = "1e7e5c08c4b00dccc1d41a5db9ffe856db6d4174149f9d32561b07fead532229",
+        version = "30c4298fbadc820dbbbf7721c72b279722856930",
+        sha256 = "ec26667dd7e0d6e22d2d7f34d5310a5fd18da6449488f4aab24b3f2a89cff795",
         urls = ["https://github.com/google/quiche/archive/{version}.tar.gz"],
         strip_prefix = "quiche-{version}",
         use_category = ["controlplane", "dataplane_core"],
-        release_date = "2023-10-11",
+        release_date = "2023-10-18",
         cpe = "N/A",
         license = "BSD-3-Clause",
         license_url = "https://github.com/google/quiche/blob/{version}/LICENSE",
diff --git a/source/common/quic/platform/quiche_flags_impl.cc b/source/common/quic/platform/quiche_flags_impl.cc
index 39f16f4cca4a..60dc6622a7a7 100644
--- a/source/common/quic/platform/quiche_flags_impl.cc
+++ b/source/common/quic/platform/quiche_flags_impl.cc
@@ -63,13 +63,6 @@ template <> constexpr int32_t maybeOverride<int32_t>(absl::string_view name, int
 // Flag definitions
 #define QUIC_FLAG(flag, value) ABSL_FLAG(bool, envoy_##flag, maybeOverride(#flag, value), "");
 #include "quiche/quic/core/quic_flags_list.h"
-QUIC_FLAG(quic_reloadable_flag_spdy_testonly_default_true, true)    // NOLINT
-QUIC_FLAG(quic_restart_flag_spdy_testonly_default_false, false)     // NOLINT
-QUIC_FLAG(quic_restart_flag_spdy_testonly_default_true, true)       // NOLINT
-QUIC_FLAG(quic_reloadable_flag_http2_testonly_default_false, false) // NOLINT
-QUIC_FLAG(quic_reloadable_flag_http2_testonly_default_true, true)   // NOLINT
-QUIC_FLAG(quic_restart_flag_http2_testonly_default_false, false)    // NOLINT
-QUIC_FLAG(quic_restart_flag_http2_testonly_default_true, true)      // NOLINT
 #undef QUIC_FLAG
 
 #define DEFINE_PROTOCOL_FLAG_IMPL(type, flag, value, help)                                         \
diff --git a/source/common/quic/platform/quiche_flags_impl.h b/source/common/quic/platform/quiche_flags_impl.h
index de425c9b05eb..e65277a3b9e4 100644
--- a/source/common/quic/platform/quiche_flags_impl.h
+++ b/source/common/quic/platform/quiche_flags_impl.h
@@ -47,14 +47,6 @@ class FlagRegistry {
 // Flag declarations
 #define QUIC_FLAG(flag, ...) ABSL_DECLARE_FLAG(bool, envoy_##flag);
 #include "quiche/quic/core/quic_flags_list.h"
-QUIC_FLAG(quic_reloadable_flag_spdy_testonly_default_false, false)  // NOLINT
-QUIC_FLAG(quic_reloadable_flag_spdy_testonly_default_true, true)    // NOLINT
-QUIC_FLAG(quic_restart_flag_spdy_testonly_default_false, false)     // NOLINT
-QUIC_FLAG(quic_restart_flag_spdy_testonly_default_true, true)       // NOLINT
-QUIC_FLAG(quic_reloadable_flag_http2_testonly_default_false, false) // NOLINT
-QUIC_FLAG(quic_reloadable_flag_http2_testonly_default_true, true)   // NOLINT
-QUIC_FLAG(quic_restart_flag_http2_testonly_default_false, false)    // NOLINT
-QUIC_FLAG(quic_restart_flag_http2_testonly_default_true, true)      // NOLINT
 #undef QUIC_FLAG
 
 #define QUIC_PROTOCOL_FLAG(type, flag, ...) ABSL_DECLARE_FLAG(type, envoy_##flag);