diff --git a/src/dynamic_programming/mod.rs b/src/dynamic_programming/mod.rs
new file mode 100644
index 0000000..31a5f09
--- /dev/null
+++ b/src/dynamic_programming/mod.rs
@@ -0,0 +1,23 @@
+pub fn fibonacci(x: u32) -> u32 {
+    if x == 1 || x == 2 {
+        1
+    } else {
+        fibonacci(x - 1) + fibonacci(x - 2)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    use crate::dynamic_programming::fibonacci;
+
+    #[test]
+    fn test_fibonacci() {
+        assert_eq!(fibonacci(1), 1);
+        assert_eq!(fibonacci(2), 1);
+        assert_eq!(fibonacci(3), 2);
+        assert_eq!(fibonacci(4), 3);
+        assert_eq!(fibonacci(5), 5);
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index 5965c88..8880e0b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,5 @@
 pub mod daily_challenges;
+pub mod dynamic_programming;
 pub mod graph;
 pub mod hash_map;
 pub mod linked_list;