diff --git a/Cargo.lock b/Cargo.lock
index e095e648..774db643 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -233,6 +233,12 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "cmov"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de0758edba32d61d1fd9f4d69491b47604b91ee2f7e6b33de7e54ca4ebe55dc3"
+
 [[package]]
 name = "cpubits"
 version = "0.1.0"
@@ -277,6 +283,15 @@ dependencies = [
  "cipher",
 ]
 
+[[package]]
+name = "ctutils"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1005a6d4446f5120ef475ad3d2af2b30c49c2c9c6904258e3bb30219bebed5e4"
+dependencies = [
+ "cmov",
+]
+
 [[package]]
 name = "dbl"
 version = "0.5.0"
@@ -487,9 +502,9 @@ dependencies = [
 
 [[package]]
 name = "polyval"
-version = "0.7.0-rc.9"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e83fbff7a079b2d37c70aa6bd5eedb9e5d09ceb9b4ecd31e9ea212d00e9b0bc"
+checksum = "7dfc63250416fea14f5749b90725916a6c903f599d51cb635aa7a52bfd03eede"
 dependencies = [
  "cpubits",
  "cpufeatures 0.3.0",
@@ -621,12 +636,12 @@ checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
 [[package]]
 name = "universal-hash"
-version = "0.6.0-rc.10"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "058482a494bb3c9c39447d8b40a3a0f38ebb3dccaf02c5a2d681e69035f8da11"
+checksum = "f4987bdc12753382e0bec4a65c50738ffaabc998b9cdd1f952fb5f39b0048a96"
 dependencies = [
  "crypto-common",
- "subtle",
+ "ctutils",
 ]
 
 [[package]]
diff --git a/aes-gcm-siv/Cargo.toml b/aes-gcm-siv/Cargo.toml
index a7de31f6..a239d331 100644
--- a/aes-gcm-siv/Cargo.toml
+++ b/aes-gcm-siv/Cargo.toml
@@ -21,7 +21,7 @@ aead = { version = "0.6.0-rc.10", default-features = false }
 aes = { version = "0.9.0-rc.4", optional = true }
 cipher = "0.5"
 ctr = "0.10.0-rc.3"
-polyval = { version = "0.7.0-rc.7", default-features = false }
+polyval = { version = "0.7.1", default-features = false }
 subtle = { version = "2", default-features = false }
 zeroize = { version = "1", optional = true, default-features = false }