diff --git a/build/parameters.go b/build/parameters.go
index 433fa497b..b7fac93d1 100644
--- a/build/parameters.go
+++ b/build/parameters.go
@@ -2,4 +2,6 @@ package build
 
 import rice "github.com/GeertJohan/go.rice"
 
-var ParametersJson = rice.MustFindBox("proof-params").MustBytes("parameters.json")
+func ParametersJson() []byte {
+	return rice.MustFindBox("proof-params").MustBytes("parameters.json")
+}
diff --git a/cli/params.go b/cli/params.go
index 440c2bbdf..518add665 100644
--- a/cli/params.go
+++ b/cli/params.go
@@ -24,7 +24,7 @@ var fetchParamCmd = &cli.Command{
 			return err
 		}
 		sectorSize := uint64(sectorSizeInt)
-		err = paramfetch.GetParams(build.ParametersJson, sectorSize)
+		err = paramfetch.GetParams(build.ParametersJson(), sectorSize)
 		if err != nil {
 			return xerrors.Errorf("fetching proof parameters: %w", err)
 		}
diff --git a/cmd/lotus-bench/main.go b/cmd/lotus-bench/main.go
index 86939459a..cb25bb23a 100644
--- a/cmd/lotus-bench/main.go
+++ b/cmd/lotus-bench/main.go
@@ -155,7 +155,7 @@ func main() {
 				}
 			}
 
-			if err := paramfetch.GetParams(build.ParametersJson, sectorSize); err != nil {
+			if err := paramfetch.GetParams(build.ParametersJson(), sectorSize); err != nil {
 				return xerrors.Errorf("getting params: %w", err)
 			}
 			sb, err := sectorbuilder.New(cfg, mds)
diff --git a/cmd/lotus-seal-worker/sub.go b/cmd/lotus-seal-worker/sub.go
index f79c691c9..bf45c685b 100644
--- a/cmd/lotus-seal-worker/sub.go
+++ b/cmd/lotus-seal-worker/sub.go
@@ -41,7 +41,7 @@ func acceptJobs(ctx context.Context, api lapi.StorageMiner, endpoint string, aut
 		return err
 	}
 
-	if err := paramfetch.GetParams(build.ParametersJson, ssize); err != nil {
+	if err := paramfetch.GetParams(build.ParametersJson(), ssize); err != nil {
 		return xerrors.Errorf("get params: %w", err)
 	}
 
diff --git a/cmd/lotus-storage-miner/init.go b/cmd/lotus-storage-miner/init.go
index 18b31c9b6..b40b2e04e 100644
--- a/cmd/lotus-storage-miner/init.go
+++ b/cmd/lotus-storage-miner/init.go
@@ -97,7 +97,7 @@ var initCmd = &cli.Command{
 		}
 
 		log.Info("Checking proof parameters")
-		if err := paramfetch.GetParams(build.ParametersJson, ssize); err != nil {
+		if err := paramfetch.GetParams(build.ParametersJson(), ssize); err != nil {
 			return xerrors.Errorf("fetching proof parameters: %w", err)
 		}
 
diff --git a/cmd/lotus/daemon.go b/cmd/lotus/daemon.go
index 7c5cb6d62..7f8806e6f 100644
--- a/cmd/lotus/daemon.go
+++ b/cmd/lotus/daemon.go
@@ -100,7 +100,7 @@ var DaemonCmd = &cli.Command{
 			return xerrors.Errorf("repo init error: %w", err)
 		}
 
-		if err := paramfetch.GetParams(build.ParametersJson, 0); err != nil {
+		if err := paramfetch.GetParams(build.ParametersJson(), 0); err != nil {
 			return xerrors.Errorf("fetching proof parameters: %w", err)
 		}
 
diff --git a/node/modules/storageminer.go b/node/modules/storageminer.go
index 533946696..a34841c71 100644
--- a/node/modules/storageminer.go
+++ b/node/modules/storageminer.go
@@ -55,7 +55,7 @@ func minerAddrFromDS(ds dtypes.MetadataDS) (address.Address, error) {
 }
 
 func GetParams(sbc *sectorbuilder.Config) error {
-	if err := paramfetch.GetParams(build.ParametersJson, sbc.SectorSize); err != nil {
+	if err := paramfetch.GetParams(build.ParametersJson(), sbc.SectorSize); err != nil {
 		return xerrors.Errorf("fetching proof parameters: %w", err)
 	}