diff --git a/pyproject.toml b/pyproject.toml
index a99ade8d3..5dea13da6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,7 @@ test = [
     "coverage==7.13.0",
     "hypothesis==6.148.7",
     "unittest-xml-reporting==3.2.0",
-    "tblib==3.1.0",  # used to see backtraces in unit tests
+    "tblib==3.2.2",  # used to see backtraces in unit tests
 ]
 
 [project.urls]