diff --git a/metropolis/node/build/fsspec/BUILD.bazel b/metropolis/node/build/fsspec/BUILD.bazel
index 49ff9a0..eeddda7 100644
--- a/metropolis/node/build/fsspec/BUILD.bazel
+++ b/metropolis/node/build/fsspec/BUILD.bazel
@@ -14,7 +14,7 @@
     embed = [":fsspec_go_proto"],
     importpath = "source.monogon.dev/metropolis/node/build/fsspec",
     visibility = ["//visibility:public"],
-    deps = ["@com_github_golang_protobuf//proto:go_default_library"],
+    deps = ["@org_golang_google_protobuf//encoding/prototext"],
 )
 
 go_proto_library(
diff --git a/metropolis/node/build/fsspec/utils.go b/metropolis/node/build/fsspec/utils.go
index 2438220..c51df06 100644
--- a/metropolis/node/build/fsspec/utils.go
+++ b/metropolis/node/build/fsspec/utils.go
@@ -4,7 +4,7 @@
 	"fmt"
 	"os"
 
-	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/encoding/prototext"
 )
 
 // ReadMergeSpecs reads FSSpecs from all files in paths and merges them into
@@ -18,7 +18,7 @@
 		}
 
 		var spec FSSpec
-		if err := proto.UnmarshalText(string(specRaw), &spec); err != nil {
+		if err := prototext.Unmarshal(specRaw, &spec); err != nil {
 			return nil, fmt.Errorf("failed to parse spec %q: %w", p, err)
 		}
 		for _, f := range spec.File {