diff --git a/crates/papyrus_rpc/src/v0_7/api/api_impl.rs b/crates/papyrus_rpc/src/v0_7/api/api_impl.rs
index c094e92b5a..27f2127ba7 100644
--- a/crates/papyrus_rpc/src/v0_7/api/api_impl.rs
+++ b/crates/papyrus_rpc/src/v0_7/api/api_impl.rs
@@ -1,7 +1,6 @@
 use std::sync::Arc;
 
 use async_trait::async_trait;
-use cairo_lang_starknet_classes::casm_contract_class::CasmContractClass;
 use jsonrpsee::core::RpcResult;
 use jsonrpsee::types::ErrorObjectOwned;
 use jsonrpsee::RpcModule;
@@ -117,6 +116,7 @@ use super::{
     BlockHashAndNumber,
     BlockId,
     CallRequest,
+    CompiledContractClass,
     ContinuationToken,
     EventFilter,
     EventsChunk,
@@ -1437,7 +1437,7 @@ impl JsonRpcServer for JsonRpcServerImpl {
         &self,
         block_id: BlockId,
         class_hash: ClassHash,
-    ) -> RpcResult<CasmContractClass> {
+    ) -> RpcResult<CompiledContractClass> {
         let storage_txn = self.storage_reader.begin_ro_txn().map_err(internal_server_error)?;
         let block_number = get_accepted_block_number(&storage_txn, block_id)?;
         let class_definition_block_number = storage_txn
@@ -1449,11 +1449,20 @@ impl JsonRpcServer for JsonRpcServerImpl {
         if class_definition_block_number > block_number {
             return Err(ErrorObjectOwned::from(CLASS_HASH_NOT_FOUND));
         }
-        let casm = storage_txn
-            .get_casm(&class_hash)
+
+        if let Some(casm) = storage_txn.get_casm(&class_hash).map_err(internal_server_error)? {
+            return Ok(CompiledContractClass::V1(casm));
+        }
+
+        let state_number = StateNumber::right_after_block(block_number)
+            .ok_or_else(|| ErrorObjectOwned::from(CLASS_HASH_NOT_FOUND))?;
+        let deprecated_compiled_contract_class = storage_txn
+            .get_state_reader()
+            .map_err(internal_server_error)?
+            .get_deprecated_class_definition_at(state_number, &class_hash)
             .map_err(internal_server_error)?
             .ok_or_else(|| ErrorObjectOwned::from(CLASS_HASH_NOT_FOUND))?;
-        Ok(casm)
+        Ok(CompiledContractClass::V0(deprecated_compiled_contract_class))
     }
 }
 
diff --git a/crates/papyrus_rpc/src/v0_7/api/mod.rs b/crates/papyrus_rpc/src/v0_7/api/mod.rs
index 0e73ec6853..ef1d1f6879 100644
--- a/crates/papyrus_rpc/src/v0_7/api/mod.rs
+++ b/crates/papyrus_rpc/src/v0_7/api/mod.rs
@@ -20,7 +20,10 @@ use papyrus_storage::StorageTxn;
 use serde::{Deserialize, Serialize};
 use starknet_api::block::BlockNumber;
 use starknet_api::core::{ClassHash, ContractAddress, Nonce};
-use starknet_api::deprecated_contract_class::Program;
+use starknet_api::deprecated_contract_class::{
+    ContractClass as StarknetApiDeprecatedContractClass,
+    Program,
+};
 use starknet_api::hash::StarkFelt;
 use starknet_api::state::{StateNumber, StorageKey};
 use starknet_api::transaction::{EventKey, Fee, TransactionHash, TransactionOffsetInBlock};
@@ -260,7 +263,7 @@ pub trait JsonRpc {
         &self,
         block_id: BlockId,
         class_hash: ClassHash,
-    ) -> RpcResult<CasmContractClass>;
+    ) -> RpcResult<CompiledContractClass>;
 }
 
 #[derive(Debug, Clone, Deserialize, Serialize)]
@@ -670,3 +673,9 @@ pub struct TransactionTraceWithHash {
     pub transaction_hash: TransactionHash,
     pub trace_root: TransactionTrace,
 }
+
+#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq)]
+pub enum CompiledContractClass {
+    V0(StarknetApiDeprecatedContractClass),
+    V1(CasmContractClass),
+}
diff --git a/crates/papyrus_rpc/src/v0_7/api/test.rs b/crates/papyrus_rpc/src/v0_7/api/test.rs
index 3a25351dd6..ee21d15b90 100644
--- a/crates/papyrus_rpc/src/v0_7/api/test.rs
+++ b/crates/papyrus_rpc/src/v0_7/api/test.rs
@@ -52,6 +52,7 @@ use starknet_api::core::{
 };
 use starknet_api::data_availability::L1DataAvailabilityMode;
 use starknet_api::deprecated_contract_class::{
+    ContractClass as StarknetApiDeprecatedContractClass,
     ContractClassAbiEntry,
     FunctionAbiEntry,
     FunctionStateMutability,
@@ -190,6 +191,7 @@ use crate::test_utils::{
     validate_schema,
     SpecFile,
 };
+use crate::v0_7::api::CompiledContractClass;
 use crate::version_config::VERSION_0_7 as VERSION;
 use crate::{
     internal_server_error,
@@ -3567,35 +3569,52 @@ async fn get_compiled_contract_class() {
     let (module, mut storage_writer) = get_test_rpc_server_and_storage_writer_from_params::<
         JsonRpcServerImpl,
     >(None, None, None, None, None);
-    let class_hash = ClassHash(stark_felt!("0x1"));
+    let casm_class_hash = ClassHash(stark_felt!("0x1"));
     let casm_contract_class = CasmContractClass::get_test_instance(&mut get_rng());
+    let deprecated_class_hash = ClassHash(stark_felt!("0x2"));
+    let deprecated_contract_class =
+        StarknetApiDeprecatedContractClass::get_test_instance(&mut get_rng());
     storage_writer
         .begin_rw_txn()
         .unwrap()
         .append_state_diff(
             BlockNumber(0),
             starknet_api::state::ThinStateDiff {
-                declared_classes: IndexMap::from([(class_hash, CompiledClassHash::default())]),
+                declared_classes: IndexMap::from([
+                    (casm_class_hash, CompiledClassHash::default()),
+                    (deprecated_class_hash, CompiledClassHash::default()),
+                ]),
                 ..Default::default()
             },
         )
         .unwrap()
-        .append_casm(&class_hash, &casm_contract_class)
+        .append_casm(&casm_class_hash, &casm_contract_class)
+        .unwrap()
+        .append_classes(BlockNumber(0), &[], &[(deprecated_class_hash, &deprecated_contract_class)])
         .unwrap()
         .commit()
         .unwrap();
 
     let res = module
-        .call::<_, CasmContractClass>(method_name, (BlockId::Tag(Tag::Latest), class_hash))
+        .call::<_, CompiledContractClass>(method_name, (BlockId::Tag(Tag::Latest), casm_class_hash))
+        .await
+        .unwrap();
+    assert_eq!(res, CompiledContractClass::V1(casm_contract_class));
+
+    let res = module
+        .call::<_, CompiledContractClass>(
+            method_name,
+            (BlockId::Tag(Tag::Latest), deprecated_class_hash),
+        )
         .await
         .unwrap();
-    assert_eq!(res, casm_contract_class);
+    assert_eq!(res, CompiledContractClass::V0(deprecated_contract_class));
 
     // Ask for an invalid class hash.
     let err = module
-        .call::<_, CasmContractClass>(
+        .call::<_, CompiledContractClass>(
             method_name,
-            (BlockId::Tag(Tag::Latest), ClassHash(stark_felt!("0x2"))),
+            (BlockId::Tag(Tag::Latest), ClassHash(stark_felt!("0x3"))),
         )
         .await
         .unwrap_err();