diff --git a/bdk-ffi/src/bdk.udl b/bdk-ffi/src/bdk.udl
index 895ebb8..d62edd1 100644
--- a/bdk-ffi/src/bdk.udl
+++ b/bdk-ffi/src/bdk.udl
@@ -337,8 +337,6 @@ interface TxBuilder {
 interface BumpFeeTxBuilder {
   constructor(string txid, FeeRate fee_rate);
 
-  BumpFeeTxBuilder allow_shrinking(Script script_pubkey);
-
   BumpFeeTxBuilder enable_rbf();
 
   BumpFeeTxBuilder enable_rbf_with_sequence(u32 nsequence);
diff --git a/bdk-ffi/src/error.rs b/bdk-ffi/src/error.rs
index b58deb7..343315f 100644
--- a/bdk-ffi/src/error.rs
+++ b/bdk-ffi/src/error.rs
@@ -6,7 +6,7 @@ use bdk::chain::tx_graph::CalculateFeeError as BdkCalculateFeeError;
 use bdk::descriptor::DescriptorError as BdkDescriptorError;
 use bdk::wallet::error::BuildFeeBumpError;
 use bdk::wallet::signer::SignerError as BdkSignerError;
-use bdk::wallet::tx_builder::{AddUtxoError, AllowShrinkingError};
+use bdk::wallet::tx_builder::AddUtxoError;
 use bdk::wallet::NewOrLoadError;
 use bdk_esplora::esplora_client::{Error as BdkEsploraError, Error};
 use bdk_file_store::FileError as BdkFileError;
@@ -504,16 +504,6 @@ impl From<AddUtxoError> for CreateTxError {
     }
 }
 
-impl From<AllowShrinkingError> for CreateTxError {
-    fn from(error: AllowShrinkingError) -> Self {
-        match error {
-            AllowShrinkingError::MissingScriptPubKey(_script) => {
-                CreateTxError::ChangePolicyDescriptor
-            }
-        }
-    }
-}
-
 impl From<BuildFeeBumpError> for CreateTxError {
     fn from(error: BuildFeeBumpError) -> Self {
         match error {
diff --git a/bdk-ffi/src/wallet.rs b/bdk-ffi/src/wallet.rs
index 3cd5f33..ff784d0 100644
--- a/bdk-ffi/src/wallet.rs
+++ b/bdk-ffi/src/wallet.rs
@@ -355,7 +355,6 @@ impl TxBuilder {
 pub(crate) struct BumpFeeTxBuilder {
     pub(crate) txid: String,
     pub(crate) fee_rate: Arc<FeeRate>,
-    pub(crate) allow_shrinking: Option<Arc<Script>>,
     pub(crate) rbf: Option<RbfValue>,
 }
 
@@ -364,18 +363,10 @@ impl BumpFeeTxBuilder {
         Self {
             txid,
             fee_rate,
-            allow_shrinking: None,
             rbf: None,
         }
     }
 
-    pub(crate) fn allow_shrinking(&self, script_pubkey: Arc<Script>) -> Arc<Self> {
-        Arc::new(Self {
-            allow_shrinking: Some(script_pubkey),
-            ..self.clone()
-        })
-    }
-
     pub(crate) fn enable_rbf(&self) -> Arc<Self> {
         Arc::new(Self {
             rbf: Some(RbfValue::Default),
@@ -397,11 +388,6 @@ impl BumpFeeTxBuilder {
         let mut wallet = wallet.get_wallet();
         let mut tx_builder = wallet.build_fee_bump(txid).map_err(CreateTxError::from)?;
         tx_builder.fee_rate(self.fee_rate.0);
-        if let Some(allow_shrinking) = &self.allow_shrinking {
-            tx_builder
-                .allow_shrinking(allow_shrinking.0.clone())
-                .map_err(CreateTxError::from)?;
-        }
         if let Some(rbf) = &self.rbf {
             match *rbf {
                 RbfValue::Default => {