diff --git a/crates/proto/src/rr/dnssec/signer.rs b/crates/proto/src/rr/dnssec/signer.rs
index 2bb78095..cba42b2c 100644
--- a/crates/proto/src/rr/dnssec/signer.rs
+++ b/crates/proto/src/rr/dnssec/signer.rs
@@ -744,7 +744,7 @@ mod tests {
     #[allow(deprecated)]
     #[allow(clippy::unreadable_literal)]
     fn test_calculate_key_tag() {
-        let test_vectors = vec![
+        let test_vectors = [
             (vec![33, 3, 21, 11, 3, 1, 1, 1], 9739),
             (
                 vec![
diff --git a/crates/resolver/src/dns_lru.rs b/crates/resolver/src/dns_lru.rs
index 2abe7ac5..09300ce3 100644
--- a/crates/resolver/src/dns_lru.rs
+++ b/crates/resolver/src/dns_lru.rs
@@ -401,7 +401,7 @@ mod tests {
             Record::from_rdata(name.clone(), 1, RData::A(A::new(127, 0, 0, 1))),
             1,
         )];
-        let ips = vec![RData::A(A::new(127, 0, 0, 1))];
+        let ips = [RData::A(A::new(127, 0, 0, 1))];
 
         // configure the cache with a minimum TTL of 2 seconds.
         let ttls = TtlConfig {
@@ -491,7 +491,7 @@ mod tests {
             Record::from_rdata(name.clone(), 62, RData::A(A::new(127, 0, 0, 1))),
             62,
         )];
-        let ips = vec![RData::A(A::new(127, 0, 0, 1))];
+        let ips = [RData::A(A::new(127, 0, 0, 1))];
 
         // configure the cache with a maximum TTL of 60 seconds.
         let ttls = TtlConfig {
@@ -580,7 +580,7 @@ mod tests {
             Record::from_rdata(name, 1, RData::A(A::new(127, 0, 0, 1))),
             1,
         )];
-        let ips = vec![RData::A(A::new(127, 0, 0, 1))];
+        let ips = [RData::A(A::new(127, 0, 0, 1))];
         let lru = DnsLru::new(1, TtlConfig::default());
 
         let rc_ips = lru.insert(query.clone(), ips_ttl, now);
@@ -600,7 +600,7 @@ mod tests {
             Record::from_rdata(name, 10, RData::A(A::new(127, 0, 0, 1))),
             10,
         )];
-        let ips = vec![RData::A(A::new(127, 0, 0, 1))];
+        let ips = [RData::A(A::new(127, 0, 0, 1))];
         let lru = DnsLru::new(1, TtlConfig::default());
 
         let rc_ips = lru.insert(query.clone(), ips_ttl, now);