diff --git a/tests/basic-proto/src/int_type.rs b/tests/basic-proto/src/int_type.rs
index 8897d08..b009250 100644
--- a/tests/basic-proto/src/int_type.rs
+++ b/tests/basic-proto/src/int_type.rs
@@ -55,7 +55,7 @@ fn encode() {
     basic.set_int32_num(-1);
     assert_eq!(basic.compute_size(), 11);
     // Regardless of the int type, fixed numbers have fixed size
-    basic.set_sfixed32_num(i64::min_value());
+    basic.set_sfixed32_num(i64::MIN);
     assert_eq!(basic.compute_size(), 16);
 
     let mut encoder = PbEncoder::new(vec![]);
diff --git a/tests/basic-proto/src/no_config.rs b/tests/basic-proto/src/no_config.rs
index 708b0bb..b47f1f7 100644
--- a/tests/basic-proto/src/no_config.rs
+++ b/tests/basic-proto/src/no_config.rs
@@ -151,7 +151,7 @@ fn decode_varint() {
     );
     let len = decoder.as_reader().len();
     basic.decode(&mut decoder, len).unwrap();
-    assert_eq!(basic.int64_num(), Some(&i64::min_value()));
+    assert_eq!(basic.int64_num(), Some(&i64::MIN));
 
     let mut decoder = PbDecoder::new(
         [
@@ -163,7 +163,7 @@ fn decode_varint() {
     let len = decoder.as_reader().len();
     basic.decode(&mut decoder, len).unwrap();
     assert_eq!(basic.uint32_num(), Some(&150));
-    assert_eq!(basic.uint64_num(), Some(&u64::max_value()));
+    assert_eq!(basic.uint64_num(), Some(&u64::MAX));
 
     let mut decoder = PbDecoder::new(
         [