https://lists.sequoia-pgp.org/hyperkitty/list/announce@lists.sequoia-pgp.org/thread/SN2E3QRT4DMQ5JNEK6VIN6DJ5SH766DI/
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -102,6 +102,12 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "base64"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4a4ddaa51a5bc52a6948f74c06d20aaaddb71924eab79b8c97a8c556e942d6a"
+
 [[package]]
 name = "bindgen"
 version = "0.63.0"
@@ -145,9 +151,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "buffered-reader"
-version = "1.1.4"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0dd286184b392a1ce6b3deecd073f0330df194bf935b87f852147d50d0d2d18"
+checksum = "66d3bea5bcc3ecc38fe5388e6bc35e6fe7bd665eb3ae9a44283e15b91ad3867d"
 dependencies = [
  "bzip2",
  "flate2",
@@ -1310,21 +1316,22 @@ dependencies = [
 
 [[package]]
 name = "nettle"
-version = "7.2.0"
+version = "7.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5d193a809310369c5d16e45bc0a88cb27935edd5d3375bcfc2371b167694035"
+checksum = "b9fdccf3eae7b161910d2daa2f0155ca35041322e8fe5c5f1f2c9d0b12356336"
 dependencies = [
  "getrandom 0.2.8",
  "libc",
  "nettle-sys",
  "thiserror",
+ "typenum",
 ]
 
 [[package]]
 name = "nettle-sys"
-version = "2.1.1"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5df7cd7e8d5d2997055f31318d1ec648c84886e662bbef7b4a60e3cbc899522b"
+checksum = "b5e81c347b9002da0b6b0c4060993c280e99eb14b42ecf65a2fefcd6eb3d8a73"
 dependencies = [
  "bindgen",
  "cc",
@@ -1873,7 +1880,7 @@ name = "sequoia-chameleon-gnupg"
 version = "0.2.0"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.13.1",
  "buffered-reader",
  "chrono",
  "diff",
@@ -1937,7 +1944,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7cca7e201e65a2acd3fbbb6004f843e622959f00afbbe8f3308a7997c9784dfa"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.13.1",
  "futures-util",
  "http",
  "hyper",
@@ -1957,25 +1964,26 @@ dependencies = [
 
 [[package]]
 name = "sequoia-openpgp"
-version = "1.13.0"
+version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70af2f594bf5261eb87be5060db1e40d6445686d2bb3ec41c014cf53701130a2"
+checksum = "30efff3f9930e85b4284e76bbdad741f36412dfb1e370efd0de5866ae1a11dfc"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.21.0",
  "buffered-reader",
  "bzip2",
  "chrono",
  "dyn-clone",
  "flate2",
  "getrandom 0.2.8",
- "idna 0.3.0",
+ "idna 0.2.3",
  "lalrpop",
  "lalrpop-util",
  "lazy_static",
  "libc",
  "memsec",
  "nettle",
+ "once_cell",
  "rand 0.7.3",
  "regex",
  "regex-syntax",