diff --git a/README.md b/README.md
index 4935327..3ea6321 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ println!("Li_{}({}) = {}", n, z, z.li(n)); // Li_n(z)
 Notes
 -----
 
-The implementation of the real dilogarithm is an adaption of
+The implementation of the real dilogarithm is an adaptation of
 [[arXiv:2201.01678](https://arxiv.org/abs/2201.01678)].
 
 The implementation of the complex dilogarithm has been inspired by the
@@ -55,7 +55,7 @@ The implementation of the real trilogarithm is an adaptation of
 [[arXiv:2308.11619](https://arxiv.org/abs/2308.11619)].
 
 The implementation of the general n-th order polylogarithm is an
-adaption of [[arXiv:2010.09860](https://arxiv.org/abs/2010.09860)].
+adaptation of [[arXiv:2010.09860](https://arxiv.org/abs/2010.09860)].
 
 
 Copying
diff --git a/src/li.rs b/src/li.rs
index a160a71..b2983ed 100644
--- a/src/li.rs
+++ b/src/li.rs
@@ -15,7 +15,7 @@ impl Li<Complex<f64>> for Complex<f64> {
     /// Returns the complex n-th order polylogarithm of a complex
     /// number of type `Complex<f64>` for all integers `n`.
     ///
-    /// The implementation for `n < 0` is an adaption of
+    /// The implementation for `n < 0` is an adaptation of
     /// [[arxiv:2010.09860]].
     ///
     /// [arxiv:2010.09860]: https://arxiv.org/abs/2010.09860
@@ -38,7 +38,7 @@ impl Li<f64> for f64 {
     /// Returns the real n-th order polylogarithm of a real number of
     /// type `f64` for all integers `n`.
     ///
-    /// The implementation for `n < 0` is an adaption of
+    /// The implementation for `n < 0` is an adaptation of
     /// [[arxiv:2010.09860]].
     ///
     /// [arxiv:2010.09860]: https://arxiv.org/abs/2010.09860