diff --git a/Cargo.toml b/Cargo.toml
index 6c7ebf7..6194d38 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dapr"
-version = "0.15.0"
+version = "0.15.1-rc.1"
 authors = ["dapr.io"]
 edition = "2021"
 license = "Apache-2.0"
@@ -10,7 +10,7 @@ readme = "README.md"
 keywords = ["microservices", "dapr"]
 
 [dependencies]
-dapr-macros = { version = "0.15.0", path = "macros" }
+dapr-macros = { version = "0.15.1-rc.1", path = "macros" }
 futures = "0.3"
 tonic = "0.11.0"
 prost = "0.12.3"
diff --git a/build.rs b/build.rs
index 3215faf..b0eb730 100644
--- a/build.rs
+++ b/build.rs
@@ -2,14 +2,17 @@
 
 fn main() -> Result<(), std::io::Error> {
     // env::set_var("OUT_DIR", "src");
-    tonic_build::configure().build_server(true).compile(
-        &[
-            "dapr/proto/common/v1/common.proto",
-            "dapr/proto/runtime/v1/dapr.proto",
-            "dapr/proto/runtime/v1/appcallback.proto",
-            "examples/invoke/proto/helloworld.proto",
-        ],
-        &["."],
-    )?;
+    tonic_build::configure()
+        .protoc_arg("--experimental_allow_proto3_optional")
+        .build_server(true)
+        .compile(
+            &[
+                "dapr/proto/common/v1/common.proto",
+                "dapr/proto/runtime/v1/dapr.proto",
+                "dapr/proto/runtime/v1/appcallback.proto",
+                "examples/invoke/proto/helloworld.proto",
+            ],
+            &["."],
+        )?;
     Ok(())
 }
diff --git a/dapr/proto/runtime/v1/dapr.proto b/dapr/proto/runtime/v1/dapr.proto
index 8ecc398..d1e5f67 100644
--- a/dapr/proto/runtime/v1/dapr.proto
+++ b/dapr/proto/runtime/v1/dapr.proto
@@ -493,6 +493,7 @@ message InvokeBindingRequest {
   //
   // Common metadata property:
   // - ttlInSeconds : the time to live in seconds for the message.
+  //
   // If set in the binding definition will cause all messages to
   // have a default time to live. The message ttl overrides any value
   // in the binding definition.
@@ -839,11 +840,11 @@ message TryLockRequest {
   //
   // The reason why we don't make it automatically generated is:
   // 1. If it is automatically generated,there must be a 'my_lock_owner_id' field in the response.
-  // This name is so weird that we think it is inappropriate to put it into the api spec
+  //   This name is so weird that we think it is inappropriate to put it into the api spec
   // 2. If we change the field 'my_lock_owner_id' in the response to 'lock_owner',which means the current lock owner of this lock,
-  // we find that in some lock services users can't get the current lock owner.Actually users don't need it at all.
+  //   we find that in some lock services users can't get the current lock owner.Actually users don't need it at all.
   // 3. When reentrant lock is needed,the existing lock_owner is required to identify client and check "whether this client can reenter this lock".
-  // So this field in the request shouldn't be removed.
+  //   So this field in the request shouldn't be removed.
   string lock_owner = 3 [json_name = "lockOwner"];
 
   // Required. The time before expiry.The time unit is second.
@@ -880,7 +881,7 @@ message SubtleGetKeyRequest {
     // JSON (JSON Web Key) as string
     JSON = 1;
   }
- 
+
   // Name of the component
   string component_name = 1 [json_name="componentName"];
   // Name (or name/version) of the key to use in the key vault
@@ -1062,7 +1063,7 @@ message EncryptRequestOptions {
   // If true, the encrypted document does not contain a key reference.
   // In that case, calls to the Decrypt method must provide a key reference (name or name/version).
   // Defaults to false.
-  bool omit_decryption_key_name = 11 [json_name="omitDecryptionKeyName"]; 
+  bool omit_decryption_key_name = 11 [json_name="omitDecryptionKeyName"];
   // Key reference to embed in the encrypted document (name or name/version).
   // This is helpful if the reference of the key used to decrypt the document is different from the one used to encrypt it.
   // If unset, uses the reference of the key used to encrypt the document (this is the default behavior).
@@ -1273,4 +1274,4 @@ message DeleteJobRequest {
 // DeleteJobResponse is the message response to delete the job by name.
 message DeleteJobResponse {
   // Empty
-}
+}
\ No newline at end of file
diff --git a/macros/Cargo.toml b/macros/Cargo.toml
index e7af576..1c5d692 100644
--- a/macros/Cargo.toml
+++ b/macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dapr-macros"
-version = "0.15.0"
+version = "0.15.1-rc.1"
 edition = "2021"
 description = "Dapr Rust SDK"
 license = "Apache-2.0"