diff --git a/crates/papyrus_execution/src/execution_utils.rs b/crates/papyrus_execution/src/execution_utils.rs
index 9a6f34ffb7..543c2baf8b 100644
--- a/crates/papyrus_execution/src/execution_utils.rs
+++ b/crates/papyrus_execution/src/execution_utils.rs
@@ -6,6 +6,7 @@ use blockifier::execution::contract_class::{
     CompiledClassV0,
     CompiledClassV1,
     RunnableCompiledClass,
+    VersionedRunnableCompiledClass,
 };
 use blockifier::state::cached_state::{CachedState, CommitmentStateDiff, MutRefState};
 use blockifier::state::state_api::StateReader;
@@ -19,6 +20,7 @@ use papyrus_storage::state::StateStorageReader;
 use papyrus_storage::{StorageError, StorageResult, StorageTxn};
 // Expose the tool for creating entry point selectors from function names.
 pub use starknet_api::abi::abi_utils::selector_from_name;
+use starknet_api::contract_class::SierraVersion;
 use starknet_api::core::{ClassHash, ContractAddress, Nonce};
 use starknet_api::state::{StateNumber, StorageKey, ThinStateDiff};
 use starknet_types_core::felt::Felt;
@@ -55,20 +57,26 @@ impl TryFrom<PathBuf> for ExecutionConfig {
     }
 }
 
-pub(crate) fn get_contract_class(
+pub(crate) fn get_versioned_contract_class(
     txn: &StorageTxn<'_, RO>,
     class_hash: &ClassHash,
     state_number: StateNumber,
-) -> Result<Option<RunnableCompiledClass>, ExecutionUtilsError> {
+) -> Result<Option<VersionedRunnableCompiledClass>, ExecutionUtilsError> {
     match txn.get_state_reader()?.get_class_definition_block_number(class_hash)? {
         Some(block_number) if state_number.is_before(block_number) => return Ok(None),
         Some(_block_number) => {
-            let Some(casm) = txn.get_casm(class_hash)? else {
+            let (Some(casm), Some(sierra)) = txn.get_casm_and_sierra(class_hash)? else {
                 return Err(ExecutionUtilsError::CasmTableNotSynced);
             };
-            return Ok(Some(RunnableCompiledClass::V1(
+            let runnable_compiled_class = RunnableCompiledClass::V1(
                 CompiledClassV1::try_from(casm).map_err(ExecutionUtilsError::ProgramError)?,
-            )));
+            );
+            let sierra_version = SierraVersion::extract_from_program(&sierra.sierra_program)
+                .map_err(|_| ExecutionUtilsError::CasmTableNotSynced)?;
+            return Ok(Some(VersionedRunnableCompiledClass::Cairo1((
+                runnable_compiled_class,
+                sierra_version,
+            ))));
         }
         None => {}
     };
@@ -78,9 +86,9 @@ pub(crate) fn get_contract_class(
     else {
         return Ok(None);
     };
-    Ok(Some(RunnableCompiledClass::V0(
+    Ok(Some(VersionedRunnableCompiledClass::Cairo0(RunnableCompiledClass::V0(
         CompiledClassV0::try_from(deprecated_class).map_err(ExecutionUtilsError::ProgramError)?,
-    )))
+    ))))
 }
 
 /// Given an ExecutableTransactionInput, returns a function that will convert the corresponding
diff --git a/crates/papyrus_execution/src/state_reader.rs b/crates/papyrus_execution/src/state_reader.rs
index b67aaa170e..2195ec015c 100644
--- a/crates/papyrus_execution/src/state_reader.rs
+++ b/crates/papyrus_execution/src/state_reader.rs
@@ -8,6 +8,7 @@ use blockifier::execution::contract_class::{
     CompiledClassV0,
     CompiledClassV1,
     RunnableCompiledClass,
+    VersionedRunnableCompiledClass,
 };
 use blockifier::state::errors::StateError;
 use blockifier::state::state_api::{StateReader as BlockifierStateReader, StateResult};
@@ -15,12 +16,13 @@ use papyrus_common::pending_classes::{ApiContractClass, PendingClassesTrait};
 use papyrus_common::state::DeclaredClassHashEntry;
 use papyrus_storage::state::StateStorageReader;
 use papyrus_storage::{StorageError, StorageReader};
+use starknet_api::contract_class::SierraVersion;
 use starknet_api::core::{ClassHash, CompiledClassHash, ContractAddress, Nonce};
 use starknet_api::state::{StateNumber, StorageKey};
 use starknet_types_core::felt::Felt;
 
 use crate::execution_utils;
-use crate::execution_utils::{get_contract_class, ExecutionUtilsError};
+use crate::execution_utils::{get_versioned_contract_class, ExecutionUtilsError};
 use crate::objects::PendingData;
 
 /// A view into the state at a specific state number.
@@ -81,10 +83,20 @@ impl BlockifierStateReader for ExecutionStateReader {
             .as_ref()
             .and_then(|pending_data| pending_data.classes.get_compiled_class(class_hash))
         {
-            return Ok(RunnableCompiledClass::V1(
-                CompiledClassV1::try_from(pending_casm).map_err(StateError::ProgramError)?,
-            ));
+            if let Some(ApiContractClass::ContractClass(sierra)) = self
+                .maybe_pending_data
+                .as_ref()
+                .and_then(|pending_data| pending_data.classes.get_class(class_hash))
+            {
+                let runnable_compiled_class = RunnableCompiledClass::V1(
+                    CompiledClassV1::try_from(pending_casm).map_err(StateError::ProgramError)?,
+                );
+                let _sierra_version = SierraVersion::extract_from_program(&sierra.sierra_program)?;
+                // TODO(AVIV): Use the sierra version when the return type is updated.
+                return Ok(runnable_compiled_class);
+            }
         }
+
         if let Some(ApiContractClass::DeprecatedContractClass(pending_deprecated_class)) = self
             .maybe_pending_data
             .as_ref()
@@ -95,12 +107,12 @@ impl BlockifierStateReader for ExecutionStateReader {
                     .map_err(StateError::ProgramError)?,
             ));
         }
-        match get_contract_class(
+        match get_versioned_contract_class(
             &self.storage_reader.begin_ro_txn().map_err(storage_err_to_state_err)?,
             &class_hash,
             self.state_number,
         ) {
-            Ok(Some(contract_class)) => Ok(contract_class),
+            Ok(Some(versioned_contract_class)) => Ok(versioned_contract_class.into()),
             Ok(None) => Err(StateError::UndeclaredClassHash(class_hash)),
             Err(ExecutionUtilsError::CasmTableNotSynced) => {
                 self.missing_compiled_class.set(Some(class_hash));