diff --git a/aoc2015/src/main.rs b/aoc2015/src/main.rs
index bcf06f4..525cc22 100644
--- a/aoc2015/src/main.rs
+++ b/aoc2015/src/main.rs
@@ -13,13 +13,13 @@ fn main() -> Result<()> {
     match args.next() {
         Some(arg) => {
             let day: usize = arg.parse().expect("Please provide a day number");
-            days[day - 1]().expect("error running day specified");
+            days[day - 1]().unwrap_or_else(|e| eprintln!("error running day specified: {}", e));
         }
         None => {
             for (i, day) in days.iter().enumerate() {
                 let i = i + 1;
                 println!("day{}: ", i);
-                day().unwrap_or_else(|e| panic!("error running day {}: {}", i, e));
+                day().unwrap_or_else(|e| eprintln!("error running day {}: {}", i, e));
                 println!();
             }
         }
diff --git a/aoc2018/src/main.rs b/aoc2018/src/main.rs
index d2bd344..7d72540 100644
--- a/aoc2018/src/main.rs
+++ b/aoc2018/src/main.rs
@@ -17,13 +17,13 @@ fn main() -> Result<()> {
     match args.next() {
         Some(arg) => {
             let day: usize = arg.parse().expect("Please provide a day number");
-            days[day - 1]().expect("error running day specified");
+            days[day - 1]().unwrap_or_else(|e| eprintln!("error running day specified: {}", e));
         }
         None => {
             for (i, day) in days.iter().enumerate() {
                 let i = i + 1;
                 println!("day{}: ", i);
-                day().unwrap_or_else(|e| panic!("error running day {}: {}", i, e));
+                day().unwrap_or_else(|e| eprintln!("error running day {}: {}", i, e));
                 println!();
             }
         }
diff --git a/aoc2019/src/main.rs b/aoc2019/src/main.rs
index 305f2ad..02d8efe 100644
--- a/aoc2019/src/main.rs
+++ b/aoc2019/src/main.rs
@@ -13,13 +13,13 @@ fn main() -> Result<()> {
     match args.next() {
         Some(arg) => {
             let day: usize = arg.parse().expect("Please provide a day number");
-            days[day - 1]().expect("error running day specified");
+            days[day - 1]().unwrap_or_else(|e| eprintln!("error running day specified: {}", e));
         }
         None => {
             for (i, day) in days.iter().enumerate() {
                 let i = i + 1;
                 println!("day{}: ", i);
-                day().unwrap_or_else(|e| panic!("error running day {}: {}", i, e));
+                day().unwrap_or_else(|e| eprintln!("error running day {}: {}", i, e));
                 println!();
             }
         }