diff --git a/Cargo.toml b/Cargo.toml
index 2139b2cf5..e040aea81 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,6 +19,4 @@ panic = 'abort'
 codegen-units = 1
 
 [patch.crates-io]
-# In development.
-incrementalmerkletree = { git = "https://github.com/zcash/incrementalmerkletree.git", rev = "b7bd6246122a6e9ace8edb51553fbf5228906cbb" }
 zcash_encoding = { path = "components/zcash_encoding" }
diff --git a/zcash_primitives/Cargo.toml b/zcash_primitives/Cargo.toml
index 83adcde85..a9e8c6685 100644
--- a/zcash_primitives/Cargo.toml
+++ b/zcash_primitives/Cargo.toml
@@ -29,7 +29,7 @@ ff = "0.11"
 fpe = "0.5"
 group = "0.11"
 hex = "0.4"
-incrementalmerkletree = "0.1"
+incrementalmerkletree = "0.2"
 jubjub = "0.8"
 lazy_static = "1"
 log = "0.4"
diff --git a/zcash_primitives/src/merkle_tree/incremental.rs b/zcash_primitives/src/merkle_tree/incremental.rs
index 5323e1379..ae3535fef 100644
--- a/zcash_primitives/src/merkle_tree/incremental.rs
+++ b/zcash_primitives/src/merkle_tree/incremental.rs
@@ -174,30 +174,25 @@ pub fn read_bridge_v1<H: HashSer + Clone, R: Read>(mut reader: R) -> io::Result<
 pub const EMPTY_CHECKPOINT: u8 = 0;
 pub const BRIDGE_CHECKPOINT: u8 = 1;
 
-pub fn write_checkpoint_v1<H: HashSer, W: Write>(
-    mut writer: W,
-    checkpoint: &Checkpoint<H>,
-) -> io::Result<()> {
+pub fn write_checkpoint_v1<W: Write>(mut writer: W, checkpoint: &Checkpoint) -> io::Result<()> {
     match checkpoint {
         Checkpoint::Empty => {
             writer.write_u8(EMPTY_CHECKPOINT)?;
         }
-        Checkpoint::AtIndex(i, b) => {
+        Checkpoint::AtIndex(i) => {
             writer.write_u8(BRIDGE_CHECKPOINT)?;
             writer.write_u64::<LittleEndian>(*i as u64)?;
-            write_bridge_v1(&mut writer, b)?;
         }
     }
 
     Ok(())
 }
 
-pub fn read_checkpoint_v1<H: HashSer + Clone, R: Read>(mut reader: R) -> io::Result<Checkpoint<H>> {
+pub fn read_checkpoint_v1<R: Read>(mut reader: R) -> io::Result<Checkpoint> {
     match reader.read_u8()? {
         EMPTY_CHECKPOINT => Ok(Checkpoint::Empty),
         BRIDGE_CHECKPOINT => Ok(Checkpoint::AtIndex(
-            reader.read_u64::<LittleEndian>()? as usize,
-            read_bridge_v1(&mut reader)?,
+            reader.read_u64::<LittleEndian>()? as usize
         )),
         flag => Err(io::Error::new(
             io::ErrorKind::InvalidInput,