diff --git a/.docker/Dockerfile-build b/.docker/Dockerfile-build
index 88fb323a01..9878fdd537 100644
--- a/.docker/Dockerfile-build
+++ b/.docker/Dockerfile-build
@@ -8,7 +8,9 @@ RUN apt-get update && apt-get upgrade -y
 COPY go.mod go.mod
 COPY go.sum go.sum
 COPY oryx/go.mod oryx/go.mod
-COPY oryx/go.sum proto/go.sum
+COPY oryx/go.sum oryx/go.sum
+COPY middleware/rpctest/go.mod middleware/rpctest/go.mod
+COPY middleware/rpctest/go.sum middleware/rpctest/go.sum
 
 ENV CGO_ENABLED=0
 
diff --git a/oryx/jsonx/patch.go b/oryx/jsonx/patch.go
index 6fd185c5b0..6166359dca 100644
--- a/oryx/jsonx/patch.go
+++ b/oryx/jsonx/patch.go
@@ -60,7 +60,8 @@ func ApplyJSONPatch[T any](p json.RawMessage, object T, denyPaths ...string) (re
 	}
 
 	for _, op := range patch {
-		// Some operations are buggy, see https://github.com/evanphx/json-patch/pull/158
+		// Only "add", "remove", and "replace" operations are supported; "move",
+		// "copy", and "test" are intentionally rejected.
 		if isUnsupported(op) {
 			return result, errors.Errorf("unsupported operation: %s", op.Kind())
 		}