diff --git a/docs/installation.md b/docs/installation.md
index fad901e..969d825 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -4,7 +4,7 @@
 
 `DUGSeis` is a Python package and has the following dependencies:
 
-* `Python >= 3.9`
+* `Python = 3.11`
 * `click`
 * `joblib`
 * `numba`