diff --git a/source/pacmap/pacmap.py b/source/pacmap/pacmap.py
index 02b504c..bb4219f 100644
--- a/source/pacmap/pacmap.py
+++ b/source/pacmap/pacmap.py
@@ -869,9 +869,12 @@ def __init__(self,
             self.random_state = 0
             _RANDOM_STATE = None  # Reset random state
 
-        if self.n_components < 2:
+        if self.n_components < 1:
             raise ValueError(
-                "The number of projection dimensions must be at least 2.")
+                "The number of projection dimensions must be at least 1."
+            )
+        if self.n_components != 2:
+            logger.warning("Note: `n_components != 2` have not been thoroughly tested.")
         if self.lr <= 0:
             raise ValueError("The learning rate must be larger than 0.")
         if self.distance == "hamming" and apply_pca: