diff --git a/bitcoin/src/bip152.rs b/bitcoin/src/bip152.rs
index 857a150a..943f47a3 100644
--- a/bitcoin/src/bip152.rs
+++ b/bitcoin/src/bip152.rs
@@ -395,7 +395,7 @@ mod test {
     fn dummy_block() -> Block {
         Block {
             header: block::Header {
-                version: block::Version(1),
+                version: block::Version::ONE,
                 prev_blockhash: BlockHash::hash(&[0]),
                 merkle_root: TxMerkleNode::hash(&[1]),
                 time: 2,
diff --git a/bitcoin/src/blockdata/block.rs b/bitcoin/src/blockdata/block.rs
index 9a80406c..ef09e480 100644
--- a/bitcoin/src/blockdata/block.rs
+++ b/bitcoin/src/blockdata/block.rs
@@ -112,13 +112,21 @@ impl Header {
 #[derive(Copy, PartialEq, Eq, Clone, Debug, PartialOrd, Ord, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "actual_serde"))]
-pub struct Version(pub i32);
+pub struct Version(i32);
 
 impl Version {
+    /// The original Bitcoin Block v1.
+    pub const ONE: Self = Self(1);
+
+    /// BIP-34 Block v2.
+    pub const TWO: Self = Self(2);
+
     /// BIP-9 compatible version number that does not signal for any softforks.
     pub const NO_SOFT_FORK_SIGNALLING: Self = Self(Self::USE_VERSION_BITS as i32);
+
     /// BIP-9 soft fork signal bits mask.
     const VERSION_BITS_MASK: u32 = 0x1FFF_FFFF;
+
     /// 32bit value starting with `001` to use version bits.
     ///
     /// The value has the top three bits `001` which enables the use of version bits to signal for soft forks.
@@ -302,7 +310,7 @@ impl Block {
         // number (including a sign bit). Height is the height of the mined
         // block in the block chain, where the genesis block is height zero (0).
 
-        if self.header.version < Version(2) {
+        if self.header.version < Version::TWO {
             return Err(Bip34Error::Unsupported);
         }
 
diff --git a/bitcoin/src/blockdata/constants.rs b/bitcoin/src/blockdata/constants.rs
index 1ff7c97b..c74fd88f 100644
--- a/bitcoin/src/blockdata/constants.rs
+++ b/bitcoin/src/blockdata/constants.rs
@@ -112,7 +112,7 @@ pub fn genesis_block(network: Network) -> Block {
         Network::Bitcoin => {
             Block {
                 header: block::Header {
-                    version: block::Version(1),
+                    version: block::Version::ONE,
                     prev_blockhash: Hash::all_zeros(),
                     merkle_root,
                     time: 1231006505,
@@ -125,7 +125,7 @@ pub fn genesis_block(network: Network) -> Block {
         Network::Testnet => {
             Block {
                 header: block::Header {
-                    version: block::Version(1),
+                    version: block::Version::ONE,
                     prev_blockhash: Hash::all_zeros(),
                     merkle_root,
                     time: 1296688602,
@@ -138,7 +138,7 @@ pub fn genesis_block(network: Network) -> Block {
         Network::Signet => {
             Block {
                 header: block::Header {
-                    version: block::Version(1),
+                    version: block::Version::ONE,
                     prev_blockhash: Hash::all_zeros(),
                     merkle_root,
                     time: 1598918400,
@@ -151,7 +151,7 @@ pub fn genesis_block(network: Network) -> Block {
         Network::Regtest => {
             Block {
                 header: block::Header {
-                    version: block::Version(1),
+                    version: block::Version::ONE,
                     prev_blockhash: Hash::all_zeros(),
                     merkle_root,
                     time: 1296688602,
@@ -224,7 +224,7 @@ mod test {
     fn bitcoin_genesis_full_block() {
         let gen = genesis_block(Network::Bitcoin);
 
-        assert_eq!(gen.header.version, block::Version(1));
+        assert_eq!(gen.header.version, block::Version::ONE);
         assert_eq!(gen.header.prev_blockhash, Hash::all_zeros());
         assert_eq!(gen.header.merkle_root.to_hex(), "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b");
 
@@ -237,7 +237,7 @@ mod test {
     #[test]
     fn testnet_genesis_full_block() {
         let gen = genesis_block(Network::Testnet);
-        assert_eq!(gen.header.version, block::Version(1));
+        assert_eq!(gen.header.version, block::Version::ONE);
         assert_eq!(gen.header.prev_blockhash, Hash::all_zeros());
         assert_eq!(gen.header.merkle_root.to_hex(), "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b");
         assert_eq!(gen.header.time, 1296688602);
@@ -249,7 +249,7 @@ mod test {
     #[test]
     fn signet_genesis_full_block() {
         let gen = genesis_block(Network::Signet);
-        assert_eq!(gen.header.version, block::Version(1));
+        assert_eq!(gen.header.version, block::Version::ONE);
         assert_eq!(gen.header.prev_blockhash, Hash::all_zeros());
         assert_eq!(gen.header.merkle_root.to_hex(), "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b");
         assert_eq!(gen.header.time, 1598918400);