diff --git a/Cargo.lock b/Cargo.lock
index 694f5b7..2d41cdd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1153,9 +1153,9 @@ checksum = "d75b0bedcc4fe52caa0e03d9f1151a323e4aa5e2d78ba3580400cd3c9e2bc4bc"
 
 [[package]]
 name = "openssl"
-version = "0.10.71"
+version = "0.10.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e14130c6a98cd258fdcb0fb6d744152343ff729cbfcb28c656a9d12b999fbcd"
+checksum = "8505734d46c8ab1e19a1dce3aef597ad87dcb4c37e7188231769bd6bd51cebf8"
 dependencies = [
  "bitflags",
  "cfg-if",
@@ -1194,9 +1194,9 @@ dependencies = [
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.106"
+version = "0.9.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8bb61ea9811cc39e3c2069f40b8b8e2e70d8569b361f879786cc7ed48b777cdd"
+checksum = "90096e2e47630d78b7d1c20952dc621f957103f8bc2c8359ec81290d75238571"
 dependencies = [
  "cc",
  "libc",
diff --git a/tacd/Cargo.toml b/tacd/Cargo.toml
index 8a813ba..cdf9784 100644
--- a/tacd/Cargo.toml
+++ b/tacd/Cargo.toml
@@ -24,5 +24,5 @@ acme_common = { path = "../acme_common" }
 anyhow = "1.0.81"
 clap = { version = "4.5.3", features = ["string"] }
 log = "0.4.21"
-openssl = "0.10.64"
+openssl = "0.10.73"
 thiserror = "2.0.3"