diff --git a/README.md b/README.md
index f8baca5..353db37 100644
--- a/README.md
+++ b/README.md
@@ -148,12 +148,12 @@ should be a `;` sperated list of `key=value` pairs. The possible keys are
   is negative, its value is printed as a comment.
 
 * `lyapunov_reset` (double, default: `print_freq`): if this is set, then, when
-  computing the Lyapnuov exponents, the tangent flow will renormalize itself at
+  computing the Lyapunov exponents, the tangent flow will renormalize itself at
   times proportional to `lyapunov_reset`. This option is incompatible with
   `lyapunov_maxu`.
 
 * `lyapunov_maxu` (double, default: unset): if this is set, then, when
-  computing the Lyapnuov exponents, the tangent flow will renormalize itself
+  computing the Lyapunov exponents, the tangent flow will renormalize itself
   whenever the norm of the tangent flow exceeds  `lyapunov_maxu`.  This option
   is incompatible with `lyapunov_reset`.