diff --git a/api/types.go b/api/types.go
index f3cf119bb3c..0de44549f38 100644
--- a/api/types.go
+++ b/api/types.go
@@ -331,4 +331,6 @@ type ForkUpgradeParams struct {
 	UpgradeHyperdriveHeight    abi.ChainEpoch
 	UpgradeChocolateHeight     abi.ChainEpoch
 	UpgradeOhSnapHeight        abi.ChainEpoch
+	UpgradeSkyrHeight          abi.ChainEpoch
+	UpgradeSharkHeight         abi.ChainEpoch
 }
diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index 683a110a89f..681d19e4c42 100644
Binary files a/build/openrpc/full.json.gz and b/build/openrpc/full.json.gz differ
diff --git a/documentation/en/api-v0-methods.md b/documentation/en/api-v0-methods.md
index c80016260d3..27ab7bd0832 100644
--- a/documentation/en/api-v0-methods.md
+++ b/documentation/en/api-v0-methods.md
@@ -5442,7 +5442,9 @@ Response:
     "UpgradeTurboHeight": 10101,
     "UpgradeHyperdriveHeight": 10101,
     "UpgradeChocolateHeight": 10101,
-    "UpgradeOhSnapHeight": 10101
+    "UpgradeOhSnapHeight": 10101,
+    "UpgradeSkyrHeight": 10101,
+    "UpgradeSharkHeight": 10101
   }
 }
 ```
diff --git a/documentation/en/api-v1-unstable-methods.md b/documentation/en/api-v1-unstable-methods.md
index 075e844ecd9..cbab6bfbf8c 100644
--- a/documentation/en/api-v1-unstable-methods.md
+++ b/documentation/en/api-v1-unstable-methods.md
@@ -5949,7 +5949,9 @@ Response:
     "UpgradeTurboHeight": 10101,
     "UpgradeHyperdriveHeight": 10101,
     "UpgradeChocolateHeight": 10101,
-    "UpgradeOhSnapHeight": 10101
+    "UpgradeOhSnapHeight": 10101,
+    "UpgradeSkyrHeight": 10101,
+    "UpgradeSharkHeight": 10101
   }
 }
 ```
diff --git a/documentation/misc/actors_version_checklist.md b/documentation/misc/actors_version_checklist.md
index 5e6038c2b02..13af238b17e 100644
--- a/documentation/misc/actors_version_checklist.md
+++ b/documentation/misc/actors_version_checklist.md
@@ -11,3 +11,4 @@
   - [ ] Schedule
   - [ ] Migration
 - [ ] Update upgrade schedule in `chain/sync_test.go`
+- [ ] Add upgrade field to `api/types.go/ForkUpgradeParams` and update the implementation of StateGetNetworkParams
diff --git a/node/impl/full/state.go b/node/impl/full/state.go
index e2c3438bb16..f9b4f741c4e 100644
--- a/node/impl/full/state.go
+++ b/node/impl/full/state.go
@@ -1093,7 +1093,7 @@ func (a *StateAPI) StateListMessages(ctx context.Context, match *api.MessageMatc
 		_, err := a.StateLookupID(ctx, match.To, tsk)
 
 		// if the recipient doesn't exist at the start point, we're not gonna find any matches
-		if xerrors.Is(err, types.ErrActorNotFound) {
+		if xerrors.Is(err, &api.ErrActorNotFound{}) {
 			return nil, nil
 		}
 
@@ -1104,7 +1104,7 @@ func (a *StateAPI) StateListMessages(ctx context.Context, match *api.MessageMatc
 		_, err := a.StateLookupID(ctx, match.From, tsk)
 
 		// if the sender doesn't exist at the start point, we're not gonna find any matches
-		if xerrors.Is(err, types.ErrActorNotFound) {
+		if xerrors.Is(err, &api.ErrActorNotFound{}) {
 			return nil, nil
 		}
 
@@ -1797,6 +1797,8 @@ func (a *StateAPI) StateGetNetworkParams(ctx context.Context) (*api.NetworkParam
 			UpgradeHyperdriveHeight:  build.UpgradeHyperdriveHeight,
 			UpgradeChocolateHeight:   build.UpgradeChocolateHeight,
 			UpgradeOhSnapHeight:      build.UpgradeOhSnapHeight,
+			UpgradeSkyrHeight:        build.UpgradeSkyrHeight,
+			UpgradeSharkHeight:       build.UpgradeSharkHeight,
 		},
 	}, nil
 }