diff --git a/poetry.lock b/poetry.lock
index ae19a62..f54b031 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -323,14 +323,14 @@ toml = ["tomli"]
 
 [[package]]
 name = "croniter"
-version = "1.3.14"
+version = "1.3.15"
 description = "croniter provides iteration for datetime object with cron like format"
 category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 files = [
-    {file = "croniter-1.3.14-py2.py3-none-any.whl", hash = "sha256:da1a1a7ca977b38e952ab0a119576e002bc4c05d058d644e81fc06ef7e995bb0"},
-    {file = "croniter-1.3.14.tar.gz", hash = "sha256:d067b1f95b553c6e82d95a983c465695913dcd12f47a8b9aa938a0450d94dd5e"},
+    {file = "croniter-1.3.15-py2.py3-none-any.whl", hash = "sha256:f17f877be1d93b9e3191151584a19d8b367b017ab0febc8c5472b9300da61c4c"},
+    {file = "croniter-1.3.15.tar.gz", hash = "sha256:924a38fda88f675ec6835667e1d32ac37ff0d65509c2152729d16ff205e32a65"},
 ]
 
 [package.dependencies]