diff --git a/src/_bcrypt/Cargo.lock b/src/_bcrypt/Cargo.lock
index b0a09afa0a6b09b9fc4be14a6e95573b9da11d57_c3JjL19iY3J5cHQvQ2FyZ28ubG9jaw==..177fa437800540823ae84d122b5c0febab98559e_c3JjL19iY3J5cHQvQ2FyZ28ubG9jaw== 100644
--- a/src/_bcrypt/Cargo.lock
+++ b/src/_bcrypt/Cargo.lock
@@ -28,5 +28,5 @@
 
 [[package]]
 name = "bcrypt-pbkdf"
-version = "0.8.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -32,5 +32,5 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4ef233ffa9cb9c7820b2b0e9efd0821ed180e866c9120ec9f45518659742074"
+checksum = "3806a8db60cf56efee531616a34a6aaa9a114d6da2add861b0fa4a188881b2c7"
 dependencies = [
  "blowfish",
  "pbkdf2",
@@ -254,5 +254,5 @@
 
 [[package]]
 name = "pbkdf2"
-version = "0.10.1"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -258,5 +258,5 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "271779f35b581956db91a3e55737327a03aa051e90b1c47aeb189508533adfd7"
+checksum = "83a0692ec44e4cf1ef28ca317f14f8f07da2d95ec3fa01f86e4467b725e60917"
 dependencies = [
  "digest",
 ]
diff --git a/src/_bcrypt/Cargo.toml b/src/_bcrypt/Cargo.toml
index b0a09afa0a6b09b9fc4be14a6e95573b9da11d57_c3JjL19iY3J5cHQvQ2FyZ28udG9tbA==..177fa437800540823ae84d122b5c0febab98559e_c3JjL19iY3J5cHQvQ2FyZ28udG9tbA== 100644
--- a/src/_bcrypt/Cargo.toml
+++ b/src/_bcrypt/Cargo.toml
@@ -8,7 +8,7 @@
 [dependencies]
 pyo3 = { version = "0.15.2" }
 bcrypt = "0.13"
-bcrypt-pbkdf = "0.8.1"
+bcrypt-pbkdf = "0.9.0"
 base64 = "0.13.1"
 
 [features]