diff --git a/pyproject.toml b/pyproject.toml
index 9be12de6..7b9c9440 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ Bug-tracker = "https://github.com/waltsims/k-wave-python/issues"
 
 [project.optional-dependencies]
 test = ["pytest",
-        "coverage==7.6.7",
+        "coverage==7.6.8",
         "phantominator",
         "testfixtures==8.3.0",
         "requests==2.32.3"]