diff --git a/Cargo.toml b/Cargo.toml
index e00beef..7bd5718 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,11 +10,11 @@ name = "tantivy"
 crate-type = ["cdylib"]
 
 [dependencies]
-chrono = "0.4"
-tantivy = "0.11"
-itertools = "0.8"
-futures = "0.3"
+chrono = "0.4.10"
+tantivy = "0.11.3"
+itertools = "0.8.2"
+futures = "0.3.1"
 
 [dependencies.pyo3]
-version = "0.8"
+version = "0.8.5"
 features = ["extension-module"]