diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8122aaad77..90cea21115 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,6 +53,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/collection) [\#622](https://github.com/line/lbm-sdk/pull/622) add Query/TokenClassTypeName
 * (x/bank) [\#629](https://github.com/line/lbm-sdk/pull/629) remove unsafe balance changing methods from bank keeper such as `SetBalance` and `SetSupply`.
 * (x/wasm) [\#649](https://github.com/line/lbm-sdk/pull/649) fix: wasm module's FIXME in the snapshotter.go file
+* (config) [\#665](https://github.com/line/lbm-sdk/pull/665) remove bech32-cache-size
 
 ### Improvements
 
diff --git a/server/config/config.go b/server/config/config.go
index 042260ab70..339fa2be86 100644
--- a/server/config/config.go
+++ b/server/config/config.go
@@ -79,9 +79,6 @@ type BaseConfig struct {
 	// IAVL cache size; bytes size unit
 	IAVLCacheSize uint64 `mapstructure:"iavl-cache-size"`
 
-	// Bech32CacheSize is the maximum bytes size of bech32 cache (Default : 1GB)
-	Bech32CacheSize int `mapstructure:"bech32-cache-size"`
-
 	// When true, Prometheus metrics are served under /metrics on prometheus_listen_addr in config.toml.
 	// It works when tendermint's prometheus option (config.toml) is set to true.
 	Prometheus bool `mapstructure:"prometheus"`
diff --git a/server/config/toml.go b/server/config/toml.go
index d7da002cab..83c961a59c 100644
--- a/server/config/toml.go
+++ b/server/config/toml.go
@@ -69,9 +69,6 @@ inter-block-cache-size = {{ .BaseConfig.InterBlockCacheSize }}
 # IAVLCacheSize is the maximum bytes size of iavl node cache
 iavl-cache-size = {{ .BaseConfig.IAVLCacheSize }}
 
-# Bech32CacheSize is the maximum bytes size of bech32 cache (Default : 1GB)
-bech32-cache-size = {{ .BaseConfig.Bech32CacheSize }}
-
 # IndexEvents defines the set of events in the form {eventType}.{attributeKey},
 # which informs Tendermint what to index. If empty, all events will be indexed.
 #
diff --git a/server/start.go b/server/start.go
index e30c2aeeed..56cea0e419 100644
--- a/server/start.go
+++ b/server/start.go
@@ -48,7 +48,6 @@ const (
 	FlagInterBlockCache     = "inter-block-cache"
 	FlagInterBlockCacheSize = "inter-block-cache-size"
 	FlagIAVLCacheSize       = "iavl-cache-size"
-	FlagBech32CacheSize     = "bech32-cache-size"
 	FlagUnsafeSkipUpgrades  = "unsafe-skip-upgrades"
 	FlagTrace               = "trace"
 	FlagInvCheckPeriod      = "inv-check-period"