diff --git a/Cargo.toml b/Cargo.toml
index 9ac2c8c..0e8d3b2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ bench = false
 [dependencies]
 anyhow = "1.0.81"
 chrono = "0.4.35"
-indexmap = "2.2.5"
+indexmap = "2.2.6"
 nom = "7.1.3"
 pyo3 = { version = "=0.20.3", features = ["chrono"] }
 rayon = "1.9.0"