diff --git a/crates/cuid1/src/cuid1.rs b/crates/cuid1/src/cuid1.rs
index a7bf9bf..73a2522 100644
--- a/crates/cuid1/src/cuid1.rs
+++ b/crates/cuid1/src/cuid1.rs
@@ -230,21 +230,21 @@ mod tests {
 
     #[test]
     fn cuid_is_cuid() {
-        assert!(is_cuid(cuid1().unwrap()));
+        assert!(is_cuid1(cuid1().unwrap()));
     }
 
     #[test]
     fn cuid_is_not_cuid_zero_len() {
-        assert!(!is_cuid(""));
+        assert!(!is_cuid1(""));
     }
 
     #[test]
     fn slug_len() {
-        assert!(slug().unwrap().len() == 10);
+        assert!(cuid1_slug().unwrap().len() == 10);
     }
 
     #[test]
     fn slug_is_slug() {
-        assert!(is_slug(slug().unwrap()));
+        assert!(is_cuid1_slug(cuid1_slug().unwrap()));
     }
 }
diff --git a/crates/cuid1/src/lib.rs b/crates/cuid1/src/lib.rs
index bd29e8a..f084ab1 100644
--- a/crates/cuid1/src/lib.rs
+++ b/crates/cuid1/src/lib.rs
@@ -6,7 +6,7 @@
 //! use cuid;
 //!
 //! // Get a v1 CUID
-//! println!("{}", cuid::cuid1());
+//! println!("{}", cuid::cuid1().unwrap());
 //!
 //! // Get a v2 CUID
 //! println!("{}", cuid::cuid2());
diff --git a/crates/cuid1/tests/cuid1/collisions.rs b/crates/cuid1/tests/cuid1/collisions.rs
index 7019f74..3025348 100644
--- a/crates/cuid1/tests/cuid1/collisions.rs
+++ b/crates/cuid1/tests/cuid1/collisions.rs
@@ -10,7 +10,7 @@ mod test {
     fn check_cuid_collisions() {
         let mut set = HashSet::new();
         for _ in 0..1_200_000 {
-            let id = cuid::cuid().unwrap();
+            let id = cuid::cuid1().unwrap();
             set.insert(id);
         }
         // we generated unique CUIDs
@@ -31,7 +31,7 @@ mod test {
             let t = thread::spawn(move || {
                 let mut thread_set = HashSet::new();
                 for _ in 0..ids_per_thread {
-                    let id = cuid::cuid().unwrap();
+                    let id = cuid::cuid1().unwrap();
                     thread_set.insert(id);
                 }
                 let mut sets = thread_sets.lock().unwrap();
@@ -79,7 +79,7 @@ mod single_thread {
     fn check_slug_collisions() {
         let mut set = HashSet::new();
         for _ in 0..1_200_000 {
-            let id = cuid::slug().unwrap();
+            let id = cuid::cuid1_slug().unwrap();
             set.insert(id);
         }
         // we had no duplicate slugs
diff --git a/crates/cuid1/tests/cuid1/length.rs b/crates/cuid1/tests/cuid1/length.rs
index 9d37155..09ae4cd 100644
--- a/crates/cuid1/tests/cuid1/length.rs
+++ b/crates/cuid1/tests/cuid1/length.rs
@@ -6,7 +6,7 @@ use std::collections::HashSet;
 fn check_cuid_length() {
     let mut set = HashSet::new();
     for _ in 0..100000 {
-        let id = cuid::cuid().unwrap();
+        let id = cuid::cuid1().unwrap();
         set.insert(id);
     }
     // all CUIDs are of the same length
@@ -19,7 +19,7 @@ fn check_cuid_length() {
 fn check_cuid_slug_length() {
     let mut set = HashSet::new();
     for _ in 0..100000 {
-        let id = cuid::slug().unwrap();
+        let id = cuid::cuid1_slug().unwrap();
         set.insert(id);
     }
     // all slugs are of the same length