diff --git a/CHANGELOG.md b/CHANGELOG.md
index d20ea73ed..7318b92b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,10 @@
 # Lotus changelog
 
-# 1.18.0-rc3 / 2022-10-18
+# 1.18.0-rc4 / 2022-10-20
 
 > ⚠️ **Please note that from Lotus v1.17.2&^ will require a Go-version of v1.18.1&^**
 
-This is the third release canadiate of the upcoming MANDATORY release of Lotus that introduces [Filecoin network v17,
+This is the fourth release canadiate of the upcoming MANDATORY release of Lotus that introduces [Filecoin network v17,
 codenamed the Shark upgrade](https://github.com/filecoin-project/community/discussions/74?sort=top#discussioncomment-3825422). Shark upgrade delivers a wave of protocol refinements that will allow for useful smart contracts to be written using the FVM (eg. programmable markets, lending contracts, etc.).
 
 A full changelog will be published upon final release.
diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index e6f3feded..683a110a8 100644
Binary files a/build/openrpc/full.json.gz and b/build/openrpc/full.json.gz differ
diff --git a/build/openrpc/gateway.json.gz b/build/openrpc/gateway.json.gz
index cb4f95970..824e64c4e 100644
Binary files a/build/openrpc/gateway.json.gz and b/build/openrpc/gateway.json.gz differ
diff --git a/build/openrpc/miner.json.gz b/build/openrpc/miner.json.gz
index ac759a9f5..897b3898e 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 e2b4df3a1..1458ae3e4 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 20903bfd2..19eebd0fe 100644
--- a/build/version.go
+++ b/build/version.go
@@ -37,7 +37,7 @@ func BuildTypeString() string {
 }
 
 // BuildVersion is the local build version
-const BuildVersion = "1.18.0-rc3"
+const BuildVersion = "1.18.0-rc4"
 
 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 43f2e38ba..56bfe9093 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:
-   1.18.0-rc3
+   1.18.0-rc4
 
 COMMANDS:
    init     Initialize a lotus miner repo
diff --git a/documentation/en/cli-lotus-worker.md b/documentation/en/cli-lotus-worker.md
index f52610811..c6a19e999 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:
-   1.18.0-rc3
+   1.18.0-rc4
 
 COMMANDS:
    run         Start lotus worker
diff --git a/documentation/en/cli-lotus.md b/documentation/en/cli-lotus.md
index 365d6ac67..af8e51022 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:
-   1.18.0-rc3
+   1.18.0-rc4
 
 COMMANDS:
    daemon   Start a lotus daemon process