diff --git a/CHANGELOG.md b/CHANGELOG.md
index 158935b2542..44eae6e4bfa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 # Lotus changelog
-# 1.15.0-rc1 / 2022-02-10
+# 1.15.0-rc2 / 2022-03-01
 
-This is the first release candidates of v1.15.0, detailed changelog will be updated later.
+This is the second release candidates of v1.15.0, detailed changelog will be updated later.
 
 - github.com/filecoin-project/lotus:
   - bump the version to v1.15.0-rc1
diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index ed1abf06e2a..6b5c3135fcb 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 5a8c320f373..f64a87117de 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 e06a2963d0b..c3bc632a581 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 80a6e9939f7..97a65d2c5ee 100644
--- a/build/version.go
+++ b/build/version.go
@@ -37,7 +37,7 @@ func BuildTypeString() string {
 }
 
 // BuildVersion is the local build version
-const BuildVersion = "1.15.0-rc1"
+const BuildVersion = "1.15.0-rc2"
 
 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 ba03fdae2a5..bce1f1c47e4 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:
-   1.15.0-rc1
+   1.15.0-rc2
 
 COMMANDS:
    init     Initialize a lotus miner repo
diff --git a/documentation/en/cli-lotus-worker.md b/documentation/en/cli-lotus-worker.md
index 04f55e99c7d..51c022e1d75 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:
-   1.15.0-rc1
+   1.15.0-rc2
 
 COMMANDS:
    run         Start lotus worker
diff --git a/documentation/en/cli-lotus.md b/documentation/en/cli-lotus.md
index d4436217cfa..a5fd6deb935 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:
-   1.15.0-rc1
+   1.15.0-rc2
 
 COMMANDS:
    daemon   Start a lotus daemon process