diff --git a/piecrust/Cargo.toml b/piecrust/Cargo.toml
index 6110adf8..fe97e95a 100644
--- a/piecrust/Cargo.toml
+++ b/piecrust/Cargo.toml
@@ -16,7 +16,7 @@ license = "MPL-2.0"
 crumbles = { version = "0.3", path = "../crumbles" }
 piecrust-uplink = { version = "0.19.0-rc.0", path = "../piecrust-uplink" }
 
-dusk-wasmtime = { version = "21.0.0-alpha", default-features = false, features = ["cranelift", "runtime", "parallel-compilation"] }
+dusk-wasmtime = { version = "33.0.2", git = "https://github.com/dusk-network/wasmtime", branch = "33-alpha-2", default-features = false, features = ["cranelift", "runtime", "parallel-compilation"] }
 bytecheck = "0.6"
 rkyv = { version = "0.7", features = ["size_32", "validation"] }
 blake3 = "1"
@@ -28,6 +28,7 @@ hex = "0.4"
 dusk-merkle = { version = "0.5", features = ["rkyv-impl"] }
 const-decoder = "0.3"
 tracing = "0.1.40"
+indexmap = "=2.11.4"
 
 [dev-dependencies]
 once_cell = "1.18"
diff --git a/piecrust/src/store/memory.rs b/piecrust/src/store/memory.rs
index abe63b9c..f219cd9c 100644
--- a/piecrust/src/store/memory.rs
+++ b/piecrust/src/store/memory.rs
@@ -8,7 +8,7 @@ use std::sync::atomic::Ordering;
 use std::{
     fmt::{Debug, Formatter},
     io,
-    ops::{Deref, DerefMut, Range},
+    ops::{Deref, DerefMut},
     sync::atomic::AtomicUsize,
 };
 
@@ -161,28 +161,20 @@ unsafe impl LinearMemory for Memory {
         self.inner.current_len
     }
 
-    fn maximum_byte_size(&self) -> Option<usize> {
-        Some(self.inner.len())
-    }
-
     fn grow_to(&mut self, new_size: usize) -> Result<(), dusk_wasmtime::Error> {
         self.inner.current_len = new_size;
         Ok(())
     }
 
-    fn needs_init(&self) -> bool {
-        self.is_new
-    }
-
     fn as_ptr(&self) -> *mut u8 {
         self.inner.as_ptr() as _
     }
 
-    fn wasm_accessible(&self) -> Range<usize> {
-        let begin = self.inner.mmap.as_ptr() as _;
-        let len = self.inner.current_len;
-        let end = begin + len;
+    fn byte_capacity(&self) -> usize {
+        self.inner.len()
+    }
 
-        begin..end
+    fn needs_init(&self) -> bool {
+        self.is_new
     }
 }
diff --git a/piecrust/src/vm.rs b/piecrust/src/vm.rs
index 385aae8c..e978a581 100644
--- a/piecrust/src/vm.rs
+++ b/piecrust/src/vm.rs
@@ -44,9 +44,12 @@ fn config() -> Config {
     // Host memory creator is set in the session.
     // config.with_host_memory()
 
-    config.static_memory_forced(true);
-    config.static_memory_guard_size(0);
-    config.dynamic_memory_guard_size(0);
+    // This setting doesn't exist anymore.
+    // Changed here: https://github.com/bytecodealliance/wasmtime/pull/9545
+    //config.static_memory_forced(true); change to memory_may_move
+    config.memory_may_move(false);
+
+    config.memory_guard_size(0);
     config.guard_before_linear_memory(false);
     config.memory_init_cow(false);
 
@@ -88,7 +91,7 @@ fn config() -> Config {
         V128Store32Lane: BYTE16_STORE_COST,
         V128Store64Lane: BYTE16_STORE_COST,
 
-        ..Default::default()
+        ..OperatorCost::new()
     });
 
     config