diff --git a/coordinator/internal/logic/auth/login.go b/coordinator/internal/logic/auth/login.go
index aa4268380e..4c1f229ece 100644
--- a/coordinator/internal/logic/auth/login.go
+++ b/coordinator/internal/logic/auth/login.go
@@ -35,15 +35,15 @@ func NewLoginLogic(db *gorm.DB, cfg *config.Config, vf *verifier.Verifier) *Logi
 		challengeOrm: orm.NewChallenge(db),
 	}
 
-	for _, vk := range vf.ChunkVKMap {
+	for vk := range vf.ChunkVKMap {
 		l.chunkVks[vk] = struct{}{}
 	}
 
-	for _, vk := range vf.BatchVKMap {
+	for vk := range vf.BatchVKMap {
 		l.batchVKs[vk] = struct{}{}
 	}
 
-	for _, vk := range vf.BundleVkMap {
+	for vk := range vf.BundleVkMap {
 		l.bundleVks[vk] = struct{}{}
 	}
 
diff --git a/coordinator/internal/logic/verifier/legacy_vk/agg_vk.vkey b/coordinator/internal/logic/verifier/legacy_vk/agg_vk.vkey
deleted file mode 100644
index 0b4ab2657c..0000000000
Binary files a/coordinator/internal/logic/verifier/legacy_vk/agg_vk.vkey and /dev/null differ
diff --git a/coordinator/internal/logic/verifier/legacy_vk/upgrade_vks.sh b/coordinator/internal/logic/verifier/legacy_vk/upgrade_vks.sh
index bc5fad9bd4..c362314f04 100755
--- a/coordinator/internal/logic/verifier/legacy_vk/upgrade_vks.sh
+++ b/coordinator/internal/logic/verifier/legacy_vk/upgrade_vks.sh
@@ -6,6 +6,7 @@ echo $work_dir
 
 rm $work_dir/*.vkey
 
-version=release-v0.11.4
-wget https://circuit-release.s3.us-west-2.amazonaws.com/${version}/chunk_vk.vkey -O $work_dir/chunk_vk.vkey
-wget https://circuit-release.s3.us-west-2.amazonaws.com/${version}/agg_vk.vkey -O $work_dir/agg_vk.vkey
\ No newline at end of file
+version=release-v0.12.0
+wget https://circuit-release.s3.us-west-2.amazonaws.com/${version}/vk_chunk.vkey -O $work_dir/vk_chunk.vkey
+wget https://circuit-release.s3.us-west-2.amazonaws.com/${version}/vk_batch.vkey -O $work_dir/vk_batch.vkey
+wget https://circuit-release.s3.us-west-2.amazonaws.com/${version}/vk_bundle.vkey -O $work_dir/vk_bundle.vkey
\ No newline at end of file
diff --git a/coordinator/internal/logic/verifier/legacy_vk/vk_batch.vkey b/coordinator/internal/logic/verifier/legacy_vk/vk_batch.vkey
new file mode 100644
index 0000000000..b3540d0f79
Binary files /dev/null and b/coordinator/internal/logic/verifier/legacy_vk/vk_batch.vkey differ
diff --git a/coordinator/internal/logic/verifier/legacy_vk/vk_bundle.vkey b/coordinator/internal/logic/verifier/legacy_vk/vk_bundle.vkey
new file mode 100644
index 0000000000..df9ce5840b
Binary files /dev/null and b/coordinator/internal/logic/verifier/legacy_vk/vk_bundle.vkey differ
diff --git a/coordinator/internal/logic/verifier/legacy_vk/chunk_vk.vkey b/coordinator/internal/logic/verifier/legacy_vk/vk_chunk.vkey
similarity index 100%
rename from coordinator/internal/logic/verifier/legacy_vk/chunk_vk.vkey
rename to coordinator/internal/logic/verifier/legacy_vk/vk_chunk.vkey
diff --git a/coordinator/internal/logic/verifier/types.go b/coordinator/internal/logic/verifier/types.go
index 9d4fdba931..2d831d53ed 100644
--- a/coordinator/internal/logic/verifier/types.go
+++ b/coordinator/internal/logic/verifier/types.go
@@ -10,7 +10,7 @@ const InvalidTestProof = "this is a invalid proof"
 // Verifier represents a rust ffi to a halo2 verifier.
 type Verifier struct {
 	cfg         *config.VerifierConfig
-	ChunkVKMap  map[string]string
-	BatchVKMap  map[string]string
-	BundleVkMap map[string]string
+	ChunkVKMap  map[string]struct{}
+	BatchVKMap  map[string]struct{}
+	BundleVkMap map[string]struct{}
 }
diff --git a/coordinator/internal/logic/verifier/verifier.go b/coordinator/internal/logic/verifier/verifier.go
index 2a616f126d..dcc28ded6e 100644
--- a/coordinator/internal/logic/verifier/verifier.go
+++ b/coordinator/internal/logic/verifier/verifier.go
@@ -60,9 +60,9 @@ func NewVerifier(cfg *config.VerifierConfig) (*Verifier, error) {
 
 	v := &Verifier{
 		cfg:         cfg,
-		ChunkVKMap:  make(map[string]string),
-		BatchVKMap:  make(map[string]string),
-		BundleVkMap: make(map[string]string),
+		ChunkVKMap:  make(map[string]struct{}),
+		BatchVKMap:  make(map[string]struct{}),
+		BundleVkMap: make(map[string]struct{}),
 	}
 
 	bundleVK, err := v.readVK(path.Join(cfg.HighVersionCircuit.AssetsPath, "vk_bundle.vkey"))
@@ -77,9 +77,9 @@ func NewVerifier(cfg *config.VerifierConfig) (*Verifier, error) {
 	if err != nil {
 		return nil, err
 	}
-	v.BundleVkMap[cfg.ForkName] = bundleVK
-	v.BatchVKMap[cfg.ForkName] = batchVK
-	v.ChunkVKMap[cfg.ForkName] = chunkVK
+	v.BundleVkMap[bundleVK] = struct{}{}
+	v.BatchVKMap[batchVK] = struct{}{}
+	v.ChunkVKMap[chunkVK] = struct{}{}
 
 	if err := v.loadEmbedVK(); err != nil {
 		return nil, err
@@ -190,19 +190,27 @@ func (v *Verifier) readVK(filePat string) (string, error) {
 var legacyVKFS embed.FS
 
 func (v *Verifier) loadEmbedVK() error {
-	batchVKBytes, err := fs.ReadFile(legacyVKFS, "legacy_vk/agg_vk.vkey")
+	chunkVKBytes, err := fs.ReadFile(legacyVKFS, "legacy_vk/vk_chunk.vkey")
+	if err != nil {
+		log.Error("load embed chunk vk failure", "err", err)
+		return err
+	}
+
+	batchVKBytes, err := fs.ReadFile(legacyVKFS, "legacy_vk/vk_batch.vkey")
 	if err != nil {
 		log.Error("load embed batch vk failure", "err", err)
 		return err
 	}
 
-	chunkVkBytes, err := fs.ReadFile(legacyVKFS, "legacy_vk/chunk_vk.vkey")
+	bundleVKBytes, err := fs.ReadFile(legacyVKFS, "legacy_vk/vk_bundle.vkey")
 	if err != nil {
 		log.Error("load embed chunk vk failure", "err", err)
 		return err
 	}
 
-	v.BatchVKMap["curie"] = base64.StdEncoding.EncodeToString(batchVKBytes)
-	v.ChunkVKMap["curie"] = base64.StdEncoding.EncodeToString(chunkVkBytes)
+	v.ChunkVKMap[base64.StdEncoding.EncodeToString(chunkVKBytes)] = struct{}{}
+	v.BatchVKMap[base64.StdEncoding.EncodeToString(batchVKBytes)] = struct{}{}
+	v.BundleVkMap[base64.StdEncoding.EncodeToString(bundleVKBytes)] = struct{}{}
+
 	return nil
 }