diff --git a/pyproject.toml b/pyproject.toml
index 9a94b55..00a37a9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ license = { file = "LICENSE" }
 authors = [{ name = "Trail of Bits", email = "opensource@trailofbits.com" }]
 dependencies = [
     "maturin>=1.7,<2.0",
-    "cryptography>=43,<44",
+    "cryptography>=44,<45",
 ]
 
 [project.optional-dependencies]
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 390812a..31257e5 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -87,7 +87,7 @@ dependencies = [
 [[package]]
 name = "cryptography-x509"
 version = "0.1.0"
-source = "git+https://github.com/pyca/cryptography.git?rev=8f522feb12999085680ae224ede0b8756ea079a0#8f522feb12999085680ae224ede0b8756ea079a0"
+source = "git+https://github.com/pyca/cryptography.git?tag=44.0.0#f299a48153650f2dd87716343f2daa7cd39a1f59"
 dependencies = [
  "asn1",
 ]
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index e6d8fb4..73cb563 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -20,7 +20,7 @@ self_cell = "1"
 hex = "0.4"
 sha2 = "0.10.8"
 rand = "0.8.5"
-cryptography-x509 = { git = "https://github.com/pyca/cryptography.git", rev = "8f522feb12999085680ae224ede0b8756ea079a0" }
+cryptography-x509 = { git = "https://github.com/pyca/cryptography.git", tag = "44.0.0" }
 openssl = { version = "0.10.68", features = ["vendored"] }
 
 [features]
diff --git a/rust/tsp-asn1/Cargo.lock b/rust/tsp-asn1/Cargo.lock
index 3ce6538..4b26aee 100644
--- a/rust/tsp-asn1/Cargo.lock
+++ b/rust/tsp-asn1/Cargo.lock
@@ -26,7 +26,7 @@ dependencies = [
 [[package]]
 name = "cryptography-x509"
 version = "0.1.0"
-source = "git+https://github.com/pyca/cryptography.git?rev=8f522feb12999085680ae224ede0b8756ea079a0#8f522feb12999085680ae224ede0b8756ea079a0"
+source = "git+https://github.com/pyca/cryptography.git?tag=44.0.0#f299a48153650f2dd87716343f2daa7cd39a1f59"
 dependencies = [
  "asn1",
 ]
diff --git a/rust/tsp-asn1/Cargo.toml b/rust/tsp-asn1/Cargo.toml
index bd633b4..9b9e39f 100644
--- a/rust/tsp-asn1/Cargo.toml
+++ b/rust/tsp-asn1/Cargo.toml
@@ -12,7 +12,7 @@ name = "tsp_asn1"
 
 [dependencies]
 asn1 = "0.20"
-cryptography-x509 = { git = "https://github.com/pyca/cryptography.git", rev = "8f522feb12999085680ae224ede0b8756ea079a0" }
+cryptography-x509 = { git = "https://github.com/pyca/cryptography.git", tag = "44.0.0" }
 
 [dev-dependencies]
 hex = "0.4"
\ No newline at end of file