diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index 2261c102e4..16040bf9c8 100644
Binary files a/build/openrpc/full.json.gz and b/build/openrpc/full.json.gz differ
diff --git a/build/openrpc/miner.json.gz b/build/openrpc/miner.json.gz
index 2ef745e363..83c477de7d 100644
Binary files a/build/openrpc/miner.json.gz and b/build/openrpc/miner.json.gz differ
diff --git a/build/openrpc/worker.json.gz b/build/openrpc/worker.json.gz
index 465501bc64..74c8e394b6 100644
Binary files a/build/openrpc/worker.json.gz and b/build/openrpc/worker.json.gz differ
diff --git a/build/version.go b/build/version.go
index c80c1df408..965ebb6621 100644
--- a/build/version.go
+++ b/build/version.go
@@ -37,7 +37,7 @@ func BuildTypeString() string {
 }
 
 // BuildVersion is the local build version
-const BuildVersion = "1.15.1-dev"
+const BuildVersion = "1.15.1-rc1"
 
 func UserVersion() string {
 	if os.Getenv("LOTUS_VERSION_IGNORE_COMMIT") == "1" {
diff --git a/documentation/en/cli-lotus-miner.md b/documentation/en/cli-lotus-miner.md
index 382fe42654..688964f87b 100644
--- a/documentation/en/cli-lotus-miner.md
+++ b/documentation/en/cli-lotus-miner.md
@@ -7,7 +7,7 @@ USAGE:
    lotus-miner [global options] command [command options] [arguments...]
 
 VERSION:
-   1.15.1-dev
+   1.15.1-rc1
 
 COMMANDS:
    init     Initialize a lotus miner repo
diff --git a/documentation/en/cli-lotus-worker.md b/documentation/en/cli-lotus-worker.md
index f9ca241235..26f8f2420e 100644
--- a/documentation/en/cli-lotus-worker.md
+++ b/documentation/en/cli-lotus-worker.md
@@ -7,7 +7,7 @@ USAGE:
    lotus-worker [global options] command [command options] [arguments...]
 
 VERSION:
-   1.15.1-dev
+   1.15.1-rc1
 
 COMMANDS:
    run         Start lotus worker
diff --git a/documentation/en/cli-lotus.md b/documentation/en/cli-lotus.md
index a9697f3aff..5f50d6d4f2 100644
--- a/documentation/en/cli-lotus.md
+++ b/documentation/en/cli-lotus.md
@@ -7,7 +7,7 @@ USAGE:
    lotus [global options] command [command options] [arguments...]
 
 VERSION:
-   1.15.1-dev
+   1.15.1-rc1
 
 COMMANDS:
    daemon   Start a lotus daemon process
diff --git a/go.mod b/go.mod
index 03450afdba..3cf616d896 100644
--- a/go.mod
+++ b/go.mod
@@ -105,7 +105,7 @@ require (
 	github.com/ipfs/interface-go-ipfs-core v0.5.2
 	github.com/ipld/go-car v0.3.3
 	github.com/ipld/go-car/v2 v2.1.1
-	github.com/ipld/go-codec-dagpb v1.3.0
+	github.com/ipld/go-codec-dagpb v1.3.2
 	github.com/ipld/go-ipld-prime v0.16.0
 	github.com/ipld/go-ipld-selector-text-lite v0.0.1
 	github.com/jonboulle/clockwork v0.2.2 // indirect
diff --git a/go.sum b/go.sum
index 8bbe3340af..73ed47440c 100644
--- a/go.sum
+++ b/go.sum
@@ -911,8 +911,9 @@ github.com/ipld/go-car v0.3.3/go.mod h1:/wkKF4908ULT4dFIFIUZYcfjAnj+KFnJvlh8Hsz1
 github.com/ipld/go-car/v2 v2.1.1 h1:saaKz4nC0AdfCGHLYKeXLGn8ivoPC54fyS55uyOLKwA=
 github.com/ipld/go-car/v2 v2.1.1/go.mod h1:+2Yvf0Z3wzkv7NeI69i8tuZ+ft7jyjPYIWZzeVNeFcI=
 github.com/ipld/go-codec-dagpb v1.2.0/go.mod h1:6nBN7X7h8EOsEejZGqC7tej5drsdBAXbMHyBT+Fne5s=
-github.com/ipld/go-codec-dagpb v1.3.0 h1:czTcaoAuNNyIYWs6Qe01DJ+sEX7B+1Z0LcXjSatMGe8=
 github.com/ipld/go-codec-dagpb v1.3.0/go.mod h1:ga4JTU3abYApDC3pZ00BC2RSvC3qfBb9MSJkMLSwnhA=
+github.com/ipld/go-codec-dagpb v1.3.2 h1:MZQUIjanHXXfDuYmtWYT8nFbqfFsZuyHClj6VDmSXr4=
+github.com/ipld/go-codec-dagpb v1.3.2/go.mod h1:ga4JTU3abYApDC3pZ00BC2RSvC3qfBb9MSJkMLSwnhA=
 github.com/ipld/go-ipld-prime v0.0.2-0.20191108012745-28a82f04c785/go.mod h1:bDDSvVz7vaK12FNvMeRYnpRFkSUPNQOiCYQezMD/P3w=
 github.com/ipld/go-ipld-prime v0.9.0/go.mod h1:KvBLMr4PX1gWptgkzRjVZCrLmSGcZCb/jioOQwCqZN8=
 github.com/ipld/go-ipld-prime v0.9.1-0.20210324083106-dc342a9917db/go.mod h1:KvBLMr4PX1gWptgkzRjVZCrLmSGcZCb/jioOQwCqZN8=