diff --git a/MODULE.bazel b/MODULE.bazel
index e035aece942be..92f14b24b00e8 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -30,24 +30,19 @@ bazel_dep(name = "abseil-cpp", version = "20250814.1")
 # a native repository we cannot override.
 # See https://github.com/googleapis/google-cloud-cpp/issues/15393
 bazel_dep(name = "protobuf", version = "33.1", repo_name = "com_google_protobuf")
-bazel_dep(name = "boringssl", version = "0.20241024.0")
-bazel_dep(name = "nlohmann_json", version = "3.11.3")
+bazel_dep(name = "boringssl", version = "0.20251124.0")
+bazel_dep(name = "nlohmann_json", version = "3.12.0.bcr.1")
 bazel_dep(name = "curl", version = "8.8.0.bcr.3")
-bazel_dep(name = "crc32c", version = "1.1.0")
 bazel_dep(name = "opentelemetry-cpp", version = "1.22.0")
 bazel_dep(name = "rules_proto", version = "7.1.0")
 bazel_dep(name = "rules_python", version = "1.6.3")
 bazel_dep(name = "rules_apple", version = "4.3.2")
-bazel_dep(name = "googletest", version = "1.17.0")
+bazel_dep(name = "googletest", version = "1.17.0.bcr.2")
 
 bazel_dep(name = "google_benchmark", version = "1.9.4", dev_dependency = True, repo_name = "com_google_benchmark")
 bazel_dep(name = "yaml-cpp", version = "0.8.0", dev_dependency = True, repo_name = "com_github_jbeder_yaml_cpp")
 bazel_dep(name = "pugixml", version = "1.15", dev_dependency = True, repo_name = "com_github_zeux_pugixml")
 
-# Our `curl.BUILD` file uses these.
-bazel_dep(name = "zlib", version = "1.3.1.bcr.7")
-bazel_dep(name = "c-ares", version = "1.34.5.bcr.2", repo_name = "com_github_cares_cares")
-
 # Pin this to fix a break in bazel/deps-cache.py
 bazel_dep(name = "protoc-gen-validate", version = "1.2.1.bcr.2", dev_dependency = True, repo_name = "com_envoyproxy_protoc_gen_validate")
 
diff --git a/ci/cloudbuild/builds/lib/quickstart.sh b/ci/cloudbuild/builds/lib/quickstart.sh
index 73b1b3bcff371..62b65e8af7aeb 100644
--- a/ci/cloudbuild/builds/lib/quickstart.sh
+++ b/ci/cloudbuild/builds/lib/quickstart.sh
@@ -89,12 +89,16 @@ function quickstart::build_one_quickstart() {
 #   quickstart::build_cmake_and_make "/usr/local"
 #   quickstart::run_cmake_and_make "/usr/local"
 function quickstart::run_cmake_and_make() {
+  io::run ulimit -c unlimited
+  io::run ulimit -a
   local prefix="$1"
   for lib in $(quickstart::libraries); do
     io::log_h2 "Running quickstart: ${lib}"
     mapfile -t run_args < <(quickstart::arguments "${lib}")
     quickstart::run_one_quickstart "${prefix}" "${lib}" "${run_args[@]}"
   done
+
+  io::run find . -name '*core*'
 }
 
 function quickstart::run_gcs_grpc_quickstart() {
@@ -104,7 +108,12 @@ function quickstart::run_gcs_grpc_quickstart() {
 
   io::log "[ CMake ]"
   local cmake_bin_dir="${PROJECT_ROOT}/cmake-out/quickstart/cmake-storage_grpc"
-  "${cmake_bin_dir}/quickstart_grpc" "${run_args[@]}"
+
+  if command -v /usr/bin/valgrind >/dev/null 2>&1; then
+    io::run valgrind --leak-check=full "${cmake_bin_dir}/quickstart_grpc" "${run_args[@]}"
+  else
+    io::run env MALLOC_CHECK_=3 "${cmake_bin_dir}/quickstart_grpc" "${run_args[@]}"
+  fi
 
   #  echo
   #  io::log "[ Make ]"