diff --git a/tests/aead_tests.rs b/tests/aead_tests.rs
index 28234b90a0..f2f7d54be1 100644
--- a/tests/aead_tests.rs
+++ b/tests/aead_tests.rs
@@ -459,9 +459,10 @@ fn aead_chacha20_poly1305_openssh() {
                 as_array
             };
 
-            let sequence_number = test_case.consume_usize("SEQUENCE_NUMBER");
-            assert_eq!(sequence_number as u32 as usize, sequence_number);
-            let sequence_num = sequence_number as u32;
+            let sequence_num: u32 = test_case
+                .consume_usize("SEQUENCE_NUMBER")
+                .try_into()
+                .unwrap();
             let plaintext = test_case.consume_bytes("IN");
             let ct = test_case.consume_bytes("CT");
             let expected_tag = test_case.consume_bytes("TAG");
diff --git a/tests/pbkdf2_tests.rs b/tests/pbkdf2_tests.rs
index 8f391b508e..bcef34752d 100644
--- a/tests/pbkdf2_tests.rs
+++ b/tests/pbkdf2_tests.rs
@@ -40,8 +40,7 @@ pub fn pbkdf2_tests() {
                 unreachable!()
             }
         };
-        let iterations = test_case.consume_usize("c");
-        let iterations = NonZeroU32::new(iterations as u32).unwrap();
+        let iterations: u32 = test_case.consume_usize("c").try_into().unwrap();
         let secret = test_case.consume_bytes("P");
         let salt = test_case.consume_bytes("S");
         let dk = test_case.consume_bytes("DK");