diff --git a/2022/src/bin/day1.rs b/2022/src/bin/day1.rs
index 6710da9..c11ef31 100644
--- a/2022/src/bin/day1.rs
+++ b/2022/src/bin/day1.rs
@@ -29,7 +29,7 @@ impl aoc::Solver for Day {
 
     fn part1(input: &str) -> u32 {
         input.split("\n\n")
-            .map(|elf| elf.split("\n")
+            .map(|elf| elf.lines()
                  .flat_map(|snack| snack.parse::<u32>())
                  .sum())
             .max()
@@ -38,7 +38,7 @@ impl aoc::Solver for Day {
 
     fn part2(input: &str) -> u32 {
         let mut elfs: Vec<u32> = input.split("\n\n")
-            .map(|elf| elf.split("\n")
+            .map(|elf| elf.lines()
                  .flat_map(|snack| snack.parse::<u32>())
                  .sum())
             .collect();
diff --git a/2022/src/bin/day2.rs b/2022/src/bin/day2.rs
index 340d535..5c90bf3 100644
--- a/2022/src/bin/day2.rs
+++ b/2022/src/bin/day2.rs
@@ -103,7 +103,7 @@ impl aoc::Solver for Day {
     }
 
     fn part1(input: &str) -> u32 {
-        input.split("\n")
+        input.lines()
             .filter(|round| round.len() > 0)
             .map(round_to_letters)
             .map(|(a, b)| (Hand::from(a), Hand::from(b)))
@@ -112,7 +112,7 @@ impl aoc::Solver for Day {
     }
 
     fn part2(input: &str) -> u32 {
-        input.split("\n")
+        input.lines()
             .filter(|round| round.len() > 0)
             .map(round_to_letters)
             .map(|(a, b)| (Hand::from(a), b))