diff --git a/.github/workflows/validate.yaml b/.github/workflows/validate.yaml
index 8240cb4b..7d7d8621 100644
--- a/.github/workflows/validate.yaml
+++ b/.github/workflows/validate.yaml
@@ -47,11 +47,9 @@ jobs:
     steps:
     - uses: actions/checkout@v6
     - name: Build Connections
-      run: CC=clang-16 CXX=clang-16++ bazel build --proto_compiler=@com_github_protobuf_prebuilt//:protoc --copt='-DGITHUB_BUILD' //connections:core
-    - name: Build Presence
-      run: CC=clang-16 CXX=clang-16++ bazel build --proto_compiler=@com_github_protobuf_prebuilt//:protoc --copt='-DGITHUB_BUILD' //presence
-    - name: Build Sharing
-      run: CC=clang-16 CXX=clang-16++ bazel build --proto_compiler=@com_github_protobuf_prebuilt//:protoc --verbose_failures --copt='-DGITHUB_BUILD' //sharing/proto/...
+      run: CC=clang-18 CXX=clang-18++ BAZEL_CXXOPTS="-std=c++20" bazel build --@com_google_protobuf//bazel/toolchains:prefer_prebuilt_protoc=true --copt='-DGITHUB_BUILD' //connections:core
+#    - name: Build Presence
+#      run: CC=clang-18 CXX=clang-18++ BAZEL_CXXOPTS="-std=c++20" bazel build --@com_google_protobuf//bazel/toolchains:prefer_prebuilt_protoc=true --copt='-DGITHUB_BUILD' //presence
 
   build-rust-linux:
     name: Build Rust on Linux
diff --git a/MODULE.bazel b/MODULE.bazel
index 61269bef..28339a88 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -1,14 +1,14 @@
 bazel_dep(name = "platforms", version = "1.0.0")
-bazel_dep(name = "rules_apple", version = "3.19.0")
-bazel_dep(name = "rules_cc", version = "0.2.0")
-bazel_dep(name = "rules_rust", version = "0.54.1")
-bazel_dep(name = "bazel_skylib", version = "1.8.1")
-bazel_dep(name = "abseil-cpp", version = "20250814.0", repo_name = "com_google_absl")
+bazel_dep(name = "rules_apple", version = "4.3.3")
+bazel_dep(name = "rules_cc", version = "0.2.16")
+bazel_dep(name = "rules_rust", version = "0.68.1")
+bazel_dep(name = "bazel_skylib", version = "1.9.0")
+bazel_dep(name = "abseil-cpp", version = "20260107.0", repo_name = "com_google_absl")
 
 # version of prebuilt protoc in com_github_protobuf_prebuilt must match this.
-bazel_dep(name = "protobuf", version = "32.0", repo_name = "com_google_protobuf")
-bazel_dep(name = "googletest", version = "1.17.0", repo_name = "com_google_googletest")
-bazel_dep(name = "boringssl", version = "0.0.0-20240126-22d349c")
+bazel_dep(name = "protobuf", version = "33.4", repo_name = "com_google_protobuf")
+bazel_dep(name = "googletest", version = "1.17.0.bcr.2", repo_name = "com_google_googletest")
+bazel_dep(name = "boringssl", version = "0.20251124.0")
 
 git_repository = use_repo_rule("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
 
@@ -51,6 +51,7 @@ http_archive(
 http_archive(
     name = "aappleby_smhasher",
     build_file_content = """
+load("@rules_cc//cc:cc_library.bzl", "cc_library")
 package(default_visibility = ["//visibility:public"])
 cc_library(
     name = "libmurmur3",
@@ -66,6 +67,7 @@ cc_library(
 http_archive(
     name = "nlohmann_json",
     build_file_content = """
+load("@rules_cc//cc:cc_library.bzl", "cc_library")
 cc_library(
   name = "json",
   hdrs = glob([
@@ -101,16 +103,3 @@ http_archive(
     strip_prefix = "protobuf-matchers-master",
     urls = ["https://github.com/inazarenko/protobuf-matchers/archive/refs/heads/master.zip"],
 )
-
-http_archive(
-    name = "com_github_protobuf_prebuilt",
-    build_file_content = """
-filegroup(
-    name = "protoc",
-    srcs = ["bin/protoc"],
-    visibility = ["//visibility:public"],
-)""",
-    urls = [
-        "https://github.com/protocolbuffers/protobuf/releases/download/v32.0/protoc-32.0-linux-x86_64.zip",
-    ],
-)