diff --git a/master.cfg b/master.cfg
index ab5afa1..16011be 100644
--- a/master.cfg
+++ b/master.cfg
@@ -28,7 +28,9 @@ assert CLIENT_SECRET
 # a Worker object, specifying a unique worker name and password.  The same
 # worker name and password must be configured on the worker.
 
-c["workers"] = [worker.Worker("worker-rust", "pass")]
+c["workers"] = [
+    worker.Worker("worker-rust", "pass", properties={"rust_version": "1.65"})
+]
 
 if "BUILDBOT_MQ_URL" in os.environ:
     c["mq"] = {
@@ -142,7 +144,9 @@ factory.addStep(
     steps.DirectoryUpload(
         workersrc=DOC_DIR,
         masterdest="/buildbot_share/docs/radn-rs/",
-        url="https://radn.parrrate.ru/latest/docs/radn_rs/",
+        url=util.Interpolate(
+            "https://radn.parrrate.ru/latest/%(worker:rust_version)/docs/radn_rs/"
+        ),
     )
 )
 c["builders"].append(