diff --git a/pyproject.toml b/pyproject.toml
index 939d23f..f0db818 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,10 +41,10 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-  "imapclient>=3.1,<4",
+  "imapclient>=3.1,<5",
   "typer>=0.26,<1",
   "rich>=15,<16",
-  "filelock>=3.29,<4",
+  "filelock>=3.29,<5",
 ]
 
 [project.optional-dependencies]