diff --git a/cairo_programs/cairo-1-programs/array_append.cairo b/cairo_programs/cairo-1-programs/array_append.cairo
index f17418ef7b..81d7f2fc9f 100644
--- a/cairo_programs/cairo-1-programs/array_append.cairo
+++ b/cairo_programs/cairo-1-programs/array_append.cairo
@@ -4,6 +4,6 @@ fn main() -> Array<u32> {
     let mut numbers = ArrayTrait::new();
     numbers.append(4_u32);
     numbers.append(2_u32);
-    let _x = numbers.pop_front();
+    numbers.pop_front();
     numbers
 }
diff --git a/cairo_programs/cairo-1-programs/dictionaries.cairo b/cairo_programs/cairo-1-programs/dictionaries.cairo
index 67465ee2d1..56176777b5 100644
--- a/cairo_programs/cairo-1-programs/dictionaries.cairo
+++ b/cairo_programs/cairo-1-programs/dictionaries.cairo
@@ -3,13 +3,13 @@ use dict::Felt252DictTrait;
 fn main() -> felt252 {
     let mut dict_u8 = felt252_dict_new::<u8>();
     let mut dict_felt = felt252_dict_new::<felt252>();
-    let _dict_felt2 = felt252_dict_new::<felt252>();
+    let mut dict_felt2 = felt252_dict_new::<felt252>();
 
     dict_u8.insert(10, 110);
     dict_u8.insert(10, 110);
 
-    let _val10 = dict_u8[10]; // 110
-    let _val11 = dict_felt[11]; // 0
+    let val10 = dict_u8[10]; // 110
+    let val11 = dict_felt[11]; // 0
     dict_felt.insert(11, 1024);
     dict_felt[11] // 1024
 }
diff --git a/cairo_programs/cairo-1-programs/enum_flow.cairo b/cairo_programs/cairo-1-programs/enum_flow.cairo
index 38b99f4489..17d4e5a56b 100644
--- a/cairo_programs/cairo-1-programs/enum_flow.cairo
+++ b/cairo_programs/cairo-1-programs/enum_flow.cairo
@@ -26,9 +26,9 @@ fn main() -> felt252 {
     match_long(el1);
     let el2 = MyEnumLong::c(22);
     match_long(el2);
-    let _eg1: MyEnumGeneric<(), felt252> = MyEnumGeneric::<(), felt252>::a(30);
-    let _eg2: MyEnumGeneric<(), felt252> = MyEnumGeneric::<(), felt252>::b(());
-    let _eg3: MyEnumGeneric<(), felt252> = MyEnumGeneric::<(), felt252>::c(32);
+    let eg1: MyEnumGeneric<(), felt252> = MyEnumGeneric::<(), felt252>::a(30);
+    let eg2: MyEnumGeneric<(), felt252> = MyEnumGeneric::<(), felt252>::b(());
+    let eg3: MyEnumGeneric<(), felt252> = MyEnumGeneric::<(), felt252>::c(32);
     300
 }
 
diff --git a/cairo_programs/cairo-2-contracts/uint256_div_mod.cairo b/cairo_programs/cairo-2-contracts/uint256_div_mod.cairo
index 4855c7fa35..e06dec4ed7 100644
--- a/cairo_programs/cairo-2-contracts/uint256_div_mod.cairo
+++ b/cairo_programs/cairo-2-contracts/uint256_div_mod.cairo
@@ -16,7 +16,7 @@ mod TestUint256DivMod {
     #[storage]
     struct Storage {}
 
-    #[abi(embed_v0)]
+    #[external(v0)]
     impl TestUint256DivMod of super::ITestUint256DivMod<ContractState> {
         fn test_uint256_div_mod_max(ref self: ContractState) {
             let a = BoundedInt::max();