diff --git a/CHANGELOG.md b/CHANGELOG.md
index 177b461b4e..8bd759b119 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## Unreleased
 
+* (evm) [#725](https://github.com/crypto-org-chain/ethermint/pull/743) Optimize staking endblocker execution by caching queue entries from iterators.
 * (evm) [#725](https://github.com/crypto-org-chain/ethermint/pull/725) feat(RPC): add authorizationList from eth_getTransactionByHash response for EIP-7702 transactions
 * (evm) [#739](https://github.com/crypto-org-chain/ethermint/pull/739) fix: missing tx context during vm initialisation
 * (evm) [#736](https://github.com/crypto-org-chain/ethermint/pull/736) fix: prevent nil pointer dereference in tracer hooks
diff --git a/evmd/app.go b/evmd/app.go
index 88a5499366..2fa0e988f6 100644
--- a/evmd/app.go
+++ b/evmd/app.go
@@ -380,6 +380,7 @@ func NewEthermintApp(
 		panic(err)
 	}
 	app.txConfig = txConfig
+	stakingCacheSize := cast.ToInt(appOpts.Get(server.FlagStakingCacheSize))
 	app.StakingKeeper = stakingkeeper.NewKeeper(
 		appCodec,
 		runtime.NewKVStoreService(keys[stakingtypes.StoreKey]),
@@ -388,6 +389,7 @@ func NewEthermintApp(
 		authAddr,
 		address.NewBech32Codec(sdk.GetConfig().GetBech32ValidatorAddrPrefix()),
 		address.NewBech32Codec(sdk.GetConfig().GetBech32ConsensusAddrPrefix()),
+		stakingCacheSize,
 	)
 	app.MintKeeper = mintkeeper.NewKeeper(
 		appCodec,
diff --git a/evmd/simulation_test.go b/evmd/simulation_test.go
index 6099f4ccba..77eed48e11 100644
--- a/evmd/simulation_test.go
+++ b/evmd/simulation_test.go
@@ -234,7 +234,7 @@ func TestAppImportExport(t *testing.T) {
 			simApp.GetKey(stakingtypes.StoreKey), newApp.GetKey(stakingtypes.StoreKey),
 			[][]byte{
 				stakingtypes.UnbondingQueueKey, stakingtypes.RedelegationQueueKey, stakingtypes.ValidatorQueueKey,
-				stakingtypes.HistoricalInfoKey, stakingtypes.UnbondingIDKey, stakingtypes.UnbondingIndexKey, stakingtypes.UnbondingTypeKey, stakingtypes.ValidatorUpdatesKey,
+				stakingtypes.HistoricalInfoKey, stakingtypes.ValidatorUpdatesKey,
 			},
 		}, // ordering may change but it doesn't matter
 		{simApp.GetKey(slashingtypes.StoreKey), newApp.GetKey(slashingtypes.StoreKey), [][]byte{}},
diff --git a/go.mod b/go.mod
index aca43714a1..52e0460290 100644
--- a/go.mod
+++ b/go.mod
@@ -281,7 +281,7 @@ replace (
 	// release/v0.50.x
 	cosmossdk.io/store => github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20241217090828-cfbca9fe8254
 	cosmossdk.io/x/tx => github.com/crypto-org-chain/cosmos-sdk/x/tx v0.0.0-20241217090828-cfbca9fe8254
-	github.com/cosmos/cosmos-sdk => github.com/crypto-org-chain/cosmos-sdk v0.50.6-0.20250424063720-28ea58ae20d8
+	github.com/cosmos/cosmos-sdk => github.com/crypto-org-chain/cosmos-sdk v0.50.6-0.20251015030247-d8ed3ff5806b
 )
 
 replace (
diff --git a/go.sum b/go.sum
index 19a8aab780..51c1eb6e2e 100644
--- a/go.sum
+++ b/go.sum
@@ -896,8 +896,8 @@ github.com/crypto-org-chain/btree v0.0.0-20240406140148-2687063b042c h1:MOgfS4+F
 github.com/crypto-org-chain/btree v0.0.0-20240406140148-2687063b042c/go.mod h1:twD9XRA5jj9VUQGELzDO4HPQTNJsoWWfYEL+EUQ2cKY=
 github.com/crypto-org-chain/cometbft v0.0.0-20241106091515-ce418f845d9a h1:0EN1TkzHTAxpgpGaZJY3G7L4jf4+sYnI7FOmBFLCg4U=
 github.com/crypto-org-chain/cometbft v0.0.0-20241106091515-ce418f845d9a/go.mod h1:khbgmtxbgwJfMqDmnGY4rl2sQpTdzpPb1f9nqnfpy1o=
-github.com/crypto-org-chain/cosmos-sdk v0.50.6-0.20250424063720-28ea58ae20d8 h1:Sif0pGNc4C384OLucyQ7P/+KjYiJ6uDn8Cf8wR7MI+c=
-github.com/crypto-org-chain/cosmos-sdk v0.50.6-0.20250424063720-28ea58ae20d8/go.mod h1:JwwsMeZldLN20b72mmbWPY0EV9rs+v/12hRu1JFttvY=
+github.com/crypto-org-chain/cosmos-sdk v0.50.6-0.20251015030247-d8ed3ff5806b h1:k6iBxHzjy9oTSwyzBa7/9bwtsvvuimvAnzW1QqWS9+8=
+github.com/crypto-org-chain/cosmos-sdk v0.50.6-0.20251015030247-d8ed3ff5806b/go.mod h1:8/AdT5lF3ILCCl/sDQXyBgzWGtcmD1tInWyhYeREVPA=
 github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20241217090828-cfbca9fe8254 h1:NEgy0r3otU/O+0OAjMdEhbn4VotQlg+98hHbD7M23wU=
 github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20241217090828-cfbca9fe8254/go.mod h1:8DwVTz83/2PSI366FERGbWSH7hL6sB7HbYp8bqksNwM=
 github.com/crypto-org-chain/cosmos-sdk/x/tx v0.0.0-20241217090828-cfbca9fe8254 h1:JzLOFRiKsDtLJt5h0M0jkEIPDKvFFyja7VEp7gG6O9U=
diff --git a/gomod2nix.toml b/gomod2nix.toml
index af77f1a543..8fc416ce62 100644
--- a/gomod2nix.toml
+++ b/gomod2nix.toml
@@ -213,8 +213,8 @@ schema = 3
     version = "v1.0.0-beta.5"
     hash = "sha256-Fy/PbsOsd6iq0Njy3DVWK6HqWsogI+MkE8QslHGWyVg="
   [mod."github.com/cosmos/cosmos-sdk"]
-    version = "v0.50.6-0.20250424063720-28ea58ae20d8"
-    hash = "sha256-UCynFh2IangiNqQsgux4dKCk8wuF1vgoINQGA8N59QY="
+    version = "v0.50.6-0.20251015030247-d8ed3ff5806b"
+    hash = "sha256-Z1NUKKaQVZj4joCkF7qfQ/nmhwUJC185JUISgc+9R9E="
     replaced = "github.com/crypto-org-chain/cosmos-sdk"
   [mod."github.com/cosmos/go-bip39"]
     version = "v1.0.0"