diff --git a/prost-build/build.rs b/prost-build/build.rs
index 3ce4848b9..2d28216a1 100644
--- a/prost-build/build.rs
+++ b/prost-build/build.rs
@@ -41,6 +41,8 @@ fn bundled_protoc() -> Option<PathBuf> {
     let protoc_bin_name = match (env::consts::OS, env::consts::ARCH) {
         ("linux", "x86") => "protoc-linux-x86_32",
         ("linux", "x86_64") => "protoc-linux-x86_64",
+        ("linux", "s390x") => "protoc-linux-s390x",
+        ("linux", "powerpc64le") => "protoc-linux-ppcle_64",
         ("linux", "aarch64") => "protoc-linux-aarch_64",
         ("macos", "x86_64") => "protoc-osx-x86_64",
         ("macos", "aarch64") => "protoc-osx-x86_64", // will be translated to aarch64 by Rosetta
diff --git a/prost-build/third-party/protobuf/protoc-linux-ppcle_64 b/prost-build/third-party/protobuf/protoc-linux-ppcle_64
new file mode 100755
index 000000000..4dadceaac
Binary files /dev/null and b/prost-build/third-party/protobuf/protoc-linux-ppcle_64 differ
diff --git a/prost-build/third-party/protobuf/protoc-linux-s390x b/prost-build/third-party/protobuf/protoc-linux-s390x
new file mode 100755
index 000000000..442caf6b5
Binary files /dev/null and b/prost-build/third-party/protobuf/protoc-linux-s390x differ
diff --git a/prost-build/third-party/update-bundled-protobuf.sh b/prost-build/third-party/update-bundled-protobuf.sh
index 05655372c..0ee726839 100755
--- a/prost-build/third-party/update-bundled-protobuf.sh
+++ b/prost-build/third-party/update-bundled-protobuf.sh
@@ -15,6 +15,8 @@ ARCHS=( \
   "linux-aarch_64" \
   "linux-x86_32" \
   "linux-x86_64" \
+  "linux-s390x" \
+  "linux-ppcle_64" \
   "osx-x86_64" \
   "win32" \
 )