diff --git a/crates/nargo_cli/tests/test_data/bit_shifts_comptime/src/main.nr b/crates/nargo_cli/tests/test_data/bit_shifts_comptime/src/main.nr
index cd137c41d1f..c1c6890febb 100644
--- a/crates/nargo_cli/tests/test_data/bit_shifts_comptime/src/main.nr
+++ b/crates/nargo_cli/tests/test_data/bit_shifts_comptime/src/main.nr
@@ -3,11 +3,11 @@ fn main(x: u64) {
 	let three: u64 = 3;
 
 	// comptime shifts on comptime values
-	constrain two << 2 == 8;
-	constrain (two << 3) / 8 == two;
-	constrain (three >> 1) == 1;
+	assert(two << 2 == 8);
+	assert((two << 3) / 8 == two);
+	assert((three >> 1) == 1);
 
 	// comptime shifts on runtime values
-	constrain x << 1 == 128;
-	constrain x >> 2 == 16;
+	assert(x << 1 == 128);
+	assert(x >> 2 == 16);
 }
diff --git a/crates/nargo_cli/tests/test_data/bit_shifts_runtime/src/main.nr b/crates/nargo_cli/tests/test_data/bit_shifts_runtime/src/main.nr
index 0e21ddf3c4c..903a5f35463 100644
--- a/crates/nargo_cli/tests/test_data/bit_shifts_runtime/src/main.nr
+++ b/crates/nargo_cli/tests/test_data/bit_shifts_runtime/src/main.nr
@@ -3,10 +3,10 @@ fn main(x: u64, y: u64) {
 	// See: https://github.com/noir-lang/noir/issues/1265
 		
 	// runtime shifts on comptime values
-	constrain 64 << y == 128;
-	constrain 64 >> y == 32;
+	assert(64 << y == 128);
+	assert(64 >> y == 32);
 
 	// runtime shifts on runtime values
-	constrain x << y == 128;
-	constrain x >> y == 32;
+	assert(x << y == 128);
+	assert(x >> y == 32);
 }