diff --git a/.changeset/vaultv1-deposit-forward-accrual.md b/.changeset/vaultv1-deposit-forward-accrual.md
new file mode 100644
index 000000000..8ebe76920
--- /dev/null
+++ b/.changeset/vaultv1-deposit-forward-accrual.md
@@ -0,0 +1,5 @@
+---
+"@morpho-org/morpho-sdk": patch
+---
+
+Fix `MorphoVaultV1.deposit` deriving `maxSharePrice` from pre-accrue vault state. MetaMorpho's `deposit` calls `_accrueInterest()`, so the execution-time share price is `>=` the build-time one; without a forward-accrual buffer the slippage bound could be too tight and revert GeneralAdapter1's check with `SlippageExceeded`. VaultV1 deposit now forward-accrues interest by 2h before computing shares, mirroring `MorphoVaultV2.deposit` and blue repay.
diff --git a/packages/morpho-sdk/src/entities/vaultV1/vaultV1.ts b/packages/morpho-sdk/src/entities/vaultV1/vaultV1.ts
index 5f9f0def7..2abb6ec40 100644
--- a/packages/morpho-sdk/src/entities/vaultV1/vaultV1.ts
+++ b/packages/morpho-sdk/src/entities/vaultV1/vaultV1.ts
@@ -223,7 +223,20 @@ export class MorphoVaultV1 implements VaultV1Actions {
 
     const totalAssets = amount + (nativeAmount ?? 0n);
 
-    const shares = vaultData.toShares(totalAssets);
+    // Forward-accrue 2h so maxSharePrice bounds the execution-time price, like
+    // VaultV2 deposit and blue repay. MetaMorpho has no vault-level lastUpdate,
+    // so accrue to the latest of now and every allocated market's lastUpdate
+    // (accrueInterest throws below any market's lastUpdate).
+    const accrualTimestamp =
+      vaultData.allocations
+        .values()
+        .reduce(
+          (max, { position }) => MathLib.max(max, position.market.lastUpdate),
+          Time.timestamp(),
+        ) + Time.s.from.h(2n);
+    const accruedVault = vaultData.accrueInterest(accrualTimestamp);
+
+    const shares = accruedVault.toShares(totalAssets);
     if (shares <= 0n) {
       throw new NonPositiveSharesAmountError(this.vault);
     }