diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index 3aa5bc443..606cd9ac2 100644
Binary files a/build/openrpc/full.json.gz and b/build/openrpc/full.json.gz differ
diff --git a/build/params_butterfly.go b/build/params_butterfly.go
index ca10e0258..4ccc9733b 100644
--- a/build/params_butterfly.go
+++ b/build/params_butterfly.go
@@ -38,7 +38,7 @@ const UpgradeTrustHeight = -13
 const UpgradeNorwegianHeight = -14
 const UpgradeTurboHeight = -15
 const UpgradeHyperdriveHeight = -16
-const UpgradeChocolateHeight = 3600
+const UpgradeChocolateHeight = 3700
 
 func init() {
 	policy.SetConsensusMinerMinPower(abi.NewStoragePower(2 << 30))
diff --git a/documentation/en/api-v0-methods.md b/documentation/en/api-v0-methods.md
index 545750eae..a3693261a 100644
--- a/documentation/en/api-v0-methods.md
+++ b/documentation/en/api-v0-methods.md
@@ -4696,7 +4696,7 @@ Inputs:
 ]
 ```
 
-Response: `14`
+Response: `13`
 
 ### StateReadState
 StateReadState returns the indicated actor's state.
diff --git a/documentation/en/api-v1-unstable-methods.md b/documentation/en/api-v1-unstable-methods.md
index 19ab3f547..f03203314 100644
--- a/documentation/en/api-v1-unstable-methods.md
+++ b/documentation/en/api-v1-unstable-methods.md
@@ -4946,7 +4946,7 @@ Inputs:
 ]
 ```
 
-Response: `14`
+Response: `13`
 
 ### StateReadState
 StateReadState returns the indicated actor's state.
diff --git a/go.mod b/go.mod
index 7b4bd85b7..2c1cf86b9 100644
--- a/go.mod
+++ b/go.mod
@@ -49,7 +49,7 @@ require (
 	github.com/filecoin-project/specs-actors/v3 v3.1.1
 	github.com/filecoin-project/specs-actors/v4 v4.0.1
 	github.com/filecoin-project/specs-actors/v5 v5.0.4
-	github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001164657-a2369c587d17
+	github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001193936-c3afe7fa3c5c
 	github.com/filecoin-project/specs-storage v0.1.1-0.20201105051918-5188d9774506
 	github.com/filecoin-project/test-vectors/schema v0.0.5
 	github.com/gbrlsnchs/jwt/v3 v3.0.0-beta.1
diff --git a/go.sum b/go.sum
index c303adec2..dad4ba39b 100644
--- a/go.sum
+++ b/go.sum
@@ -344,8 +344,8 @@ github.com/filecoin-project/specs-actors/v4 v4.0.1/go.mod h1:TkHXf/l7Wyw4ZejyXIP
 github.com/filecoin-project/specs-actors/v5 v5.0.0-20210512015452-4fe3889fff57/go.mod h1:283yBMMUSDB2abcjP/hhrwTkhb9h3sfM6KGrep/ZlBI=
 github.com/filecoin-project/specs-actors/v5 v5.0.4 h1:OY7BdxJWlUfUFXWV/kpNBYGXNPasDIedf42T3sGx08s=
 github.com/filecoin-project/specs-actors/v5 v5.0.4/go.mod h1:5BAKRAMsOOlD8+qCw4UvT/lTLInCJ3JwOWZbX8Ipwq4=
-github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001164657-a2369c587d17 h1:AtIN4w99era1Do9JP4OmibJ8vnYBDrHEbTDWBlBeJTM=
-github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001164657-a2369c587d17/go.mod h1:V1AYfi5GkHXipx1mnVivoICZh3wtwPxDVuds+fbfQtk=
+github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001193936-c3afe7fa3c5c h1:29m9oz0AP3TglBFC9Sii9M3skIAbhZhZr+2FyomSTTo=
+github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001193936-c3afe7fa3c5c/go.mod h1:V1AYfi5GkHXipx1mnVivoICZh3wtwPxDVuds+fbfQtk=
 github.com/filecoin-project/specs-storage v0.1.1-0.20201105051918-5188d9774506 h1:Ur/l2+6qN+lQiqjozWWc5p9UDaAMDZKTlDS98oRnlIw=
 github.com/filecoin-project/specs-storage v0.1.1-0.20201105051918-5188d9774506/go.mod h1:nJRRM7Aa9XVvygr3W9k6xGF46RWzr2zxF/iGoAIfA/g=
 github.com/filecoin-project/test-vectors/schema v0.0.5 h1:w3zHQhzM4pYxJDl21avXjOKBLF8egrvwUwjpT8TquDg=
diff --git a/testplans/lotus-soup/go.sum b/testplans/lotus-soup/go.sum
index 9fb304cd1..3fd9de0b3 100644
--- a/testplans/lotus-soup/go.sum
+++ b/testplans/lotus-soup/go.sum
@@ -439,8 +439,8 @@ github.com/filecoin-project/specs-actors/v4 v4.0.1/go.mod h1:TkHXf/l7Wyw4ZejyXIP
 github.com/filecoin-project/specs-actors/v5 v5.0.0-20210512015452-4fe3889fff57/go.mod h1:283yBMMUSDB2abcjP/hhrwTkhb9h3sfM6KGrep/ZlBI=
 github.com/filecoin-project/specs-actors/v5 v5.0.4 h1:OY7BdxJWlUfUFXWV/kpNBYGXNPasDIedf42T3sGx08s=
 github.com/filecoin-project/specs-actors/v5 v5.0.4/go.mod h1:5BAKRAMsOOlD8+qCw4UvT/lTLInCJ3JwOWZbX8Ipwq4=
-github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001164657-a2369c587d17 h1:AtIN4w99era1Do9JP4OmibJ8vnYBDrHEbTDWBlBeJTM=
-github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001164657-a2369c587d17/go.mod h1:V1AYfi5GkHXipx1mnVivoICZh3wtwPxDVuds+fbfQtk=
+github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001193936-c3afe7fa3c5c h1:29m9oz0AP3TglBFC9Sii9M3skIAbhZhZr+2FyomSTTo=
+github.com/filecoin-project/specs-actors/v6 v6.0.0-20211001193936-c3afe7fa3c5c/go.mod h1:V1AYfi5GkHXipx1mnVivoICZh3wtwPxDVuds+fbfQtk=
 github.com/filecoin-project/specs-storage v0.1.1-0.20201105051918-5188d9774506 h1:Ur/l2+6qN+lQiqjozWWc5p9UDaAMDZKTlDS98oRnlIw=
 github.com/filecoin-project/specs-storage v0.1.1-0.20201105051918-5188d9774506/go.mod h1:nJRRM7Aa9XVvygr3W9k6xGF46RWzr2zxF/iGoAIfA/g=
 github.com/filecoin-project/test-vectors/schema v0.0.5/go.mod h1:iQ9QXLpYWL3m7warwvK1JC/pTri8mnfEmKygNDqqY6E=