diff --git a/Cargo.lock b/Cargo.lock
index 0f41d03e..8fb70bac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6757,7 +6757,7 @@ dependencies = [
  "solana-sysvar 3.0.0",
  "solana-sysvar-id",
  "solana-transaction",
- "solana-vote-interface 4.0.4",
+ "solana-vote-interface 5.0.0",
  "test-case",
 ]
 
@@ -7344,9 +7344,9 @@ dependencies = [
 
 [[package]]
 name = "solana-vote-interface"
-version = "4.0.4"
+version = "5.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db6e123e16bfdd7a81d71b4c4699e0b29580b619f4cd2ef5b6aae1eb85e8979f"
+checksum = "f7b4fb47dbad5a777e08ac4b1259e1fc5839c2e250512902a6d3b814f5c6040f"
 dependencies = [
  "bincode",
  "cfg_eval",
@@ -7356,16 +7356,16 @@ dependencies = [
  "serde_derive",
  "serde_with",
  "solana-clock",
- "solana-hash 3.1.0",
+ "solana-hash 4.2.0",
  "solana-instruction",
  "solana-instruction-error",
- "solana-pubkey 3.0.0",
+ "solana-pubkey 4.1.0",
  "solana-rent 3.0.0",
  "solana-sdk-ids",
  "solana-serde-varint",
  "solana-serialize-utils",
  "solana-short-vec",
- "solana-system-interface 2.0.0",
+ "solana-system-interface 3.0.0",
 ]
 
 [[package]]
diff --git a/program/Cargo.toml b/program/Cargo.toml
index b110dc4e..f7fb1230 100644
--- a/program/Cargo.toml
+++ b/program/Cargo.toml
@@ -22,7 +22,7 @@ solana-rent = "3.0.0"
 solana-stake-interface = { version = "2", features = ["bincode", "borsh", "sysvar"] }
 solana-sysvar = "3.0.0"
 solana-sysvar-id = "3.1.0"
-solana-vote-interface = { version = "4.0.4", features = ["bincode"] }
+solana-vote-interface = { version = "5.0.0", features = ["bincode"] }
 
 [dev-dependencies]
 agave-feature-set = "3.0.0"
diff --git a/program/tests/stake_instruction.rs b/program/tests/stake_instruction.rs
index e8f2b5c1..2e11ed83 100644
--- a/program/tests/stake_instruction.rs
+++ b/program/tests/stake_instruction.rs
@@ -7052,7 +7052,6 @@ fn test_stake_process_instruction_with_epoch_rewards_active() {
 
 #[derive(Debug, Clone, Copy)]
 enum VoteStateVersion {
-    V0_23_5,
     V1_14_11,
     V3,
     V4,
@@ -7061,7 +7060,6 @@ enum VoteStateVersion {
 impl VoteStateVersion {
     fn default_vote_state(&self) -> VoteStateVersions {
         match self {
-            Self::V0_23_5 => VoteStateVersions::V0_23_5(Box::default()),
             Self::V1_14_11 => VoteStateVersions::V1_14_11(Box::default()),
             Self::V3 => VoteStateVersions::V3(Box::default()),
             Self::V4 => VoteStateVersions::V4(Box::default()),
@@ -7245,14 +7243,10 @@ fn test_delegate_incorrect_vote_owner() {
 // Just like with `VoteStateV3`, we know V0_23_5 vote state will fail to
 // deserialize with `InvalidAccountData`. In other words, the behavior is
 // unchanged.
-#[test_case(VoteStateVersion::V0_23_5, Err(ProgramError::InvalidAccountData))]
-#[test_case(VoteStateVersion::V1_14_11, Ok(()))]
-#[test_case(VoteStateVersion::V3, Ok(()))]
-#[test_case(VoteStateVersion::V4, Ok(()))]
-fn test_delegate_deserialize_vote_state(
-    vote_state_version: VoteStateVersion,
-    expected_result: Result<(), ProgramError>,
-) {
+#[test_case(VoteStateVersion::V1_14_11)]
+#[test_case(VoteStateVersion::V3)]
+#[test_case(VoteStateVersion::V4)]
+fn test_delegate_deserialize_vote_state(vote_state_version: VoteStateVersion) {
     let vote_state = vote_state_version.default_vote_state();
     let vote_account = AccountSharedData::new_data_with_space(
         Rent::default().minimum_balance(VoteStateV4::size_of()),
@@ -7270,7 +7264,7 @@ fn test_delegate_deserialize_vote_state(
         &serialize(&StakeInstruction::DelegateStake).unwrap(),
         transaction_accounts,
         instruction_accounts,
-        expected_result,
+        Ok(()),
     );
 }
 
@@ -7299,16 +7293,10 @@ fn test_deactivate_delinquent_incorrect_vote_owner() {
     );
 }
 
-// Again, just like with `VoteStateV3`, we know V0_23_5 vote state will fail to
-// deserialize with `InvalidAccountData`. Again, the behavior is unchanged.
-#[test_case(VoteStateVersion::V0_23_5, Err(ProgramError::InvalidAccountData))]
-#[test_case(VoteStateVersion::V1_14_11, Ok(()))]
-#[test_case(VoteStateVersion::V3, Ok(()))]
-#[test_case(VoteStateVersion::V4, Ok(()))]
-fn test_deactivate_delinquent_deserialize_vote_state(
-    vote_state_version: VoteStateVersion,
-    expected_result: Result<(), ProgramError>,
-) {
+#[test_case(VoteStateVersion::V1_14_11)]
+#[test_case(VoteStateVersion::V3)]
+#[test_case(VoteStateVersion::V4)]
+fn test_deactivate_delinquent_deserialize_vote_state(vote_state_version: VoteStateVersion) {
     // Create delinquent vote account with the specified version
     let vote_state = vote_state_version.default_vote_state();
     let vote_account = AccountSharedData::new_data_with_space(
@@ -7327,6 +7315,6 @@ fn test_deactivate_delinquent_deserialize_vote_state(
         &serialize(&StakeInstruction::DeactivateDelinquent).unwrap(),
         transaction_accounts,
         instruction_accounts,
-        expected_result,
+        Ok(()),
     );
 }