diff --git a/pyproject.toml b/pyproject.toml
index 2fc1cbe..9b15796 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ license = "MIT"
 dependencies = [
     "aiohttp==3.13.2",
     "cryptography==46.0.3",
-    "testcontainers==4.13.2",
+    "testcontainers==4.13.3",
 ]
 
 [dependency-groups]