diff --git a/Cargo.lock b/Cargo.lock
index dd4aff70..ea6e4ca0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1372,18 +1372,18 @@ dependencies = [
 
 [[package]]
 name = "zerocopy"
-version = "0.8.3"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "199837a02c176ffe66ac6e3f6195ff49ed0ae9c0fc9c905970f924909812aba6"
+checksum = "a65238aacd5fb83fb03fcaf94823e71643e937000ec03c46e7da94234b10c870"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.3"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c76c8bc3d9d3594dabe11d4ffab6cd71cc2c3ce38526c6de5a0d81dd0039627"
+checksum = "3ca22c4ad176b37bd81a565f66635bde3d654fe6832730c3e52e1018ae1655ee"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 0f9c036b..cdf544a7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ members = [
 [workspace.dependencies]
 caliptra-cfi-lib-git = { git = "https://github.com/chipsalliance/caliptra-cfi.git", package = "caliptra-cfi-lib-git", rev = "a98e499d279e81ae85881991b1e9eee354151189", default-features = false, features = ["cfi", "cfi-counter" ] }
 caliptra-cfi-derive-git = { git = "https://github.com/chipsalliance/caliptra-cfi.git", package = "caliptra-cfi-derive-git", rev = "a98e499d279e81ae85881991b1e9eee354151189"}
-zerocopy = { version = "0.8.3", features = ["derive"] }
+zerocopy = { version = "0.8.6", features = ["derive"] }
 openssl = "0.10.64"
 
 [profile.firmware]
diff --git a/ci.sh b/ci.sh
index fd70b448..288256de 100755
--- a/ci.sh
+++ b/ci.sh
@@ -87,9 +87,7 @@ run_verification_tests dpe_profile_p384_sha384 rustcrypto
   cargo fmt --check
   cargo clippy --features libfuzzer-sys
   cargo clippy --features afl
-  # https://github.com/google/zerocopy/issues/1867
-  # Currently this fuzzer fails to compile when using zerocopy v0.8.3.
-  # cargo +nightly-2023-11-16 fuzz build --features libfuzzer-sys
+  cargo +nightly-2023-11-16 fuzz build --features libfuzzer-sys
   cargo +nightly-2023-11-16 afl build --features afl
 )
 
diff --git a/dpe/fuzz/Cargo.lock b/dpe/fuzz/Cargo.lock
index 6e136da1..99f8c64e 100644
--- a/dpe/fuzz/Cargo.lock
+++ b/dpe/fuzz/Cargo.lock
@@ -107,12 +107,6 @@ dependencies = [
  "generic-array",
 ]
 
-[[package]]
-name = "byteorder"
-version = "1.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
-
 [[package]]
 name = "caliptra-cfi-derive-git"
 version = "0.1.0"
@@ -243,14 +237,17 @@ checksum = "5fe87ce4529967e0ba1dcf8450bab64d97dfd5010a6256187ffe2e43e6f0e049"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.37",
+ "syn 2.0.79",
 ]
 
 [[package]]
 name = "deranged"
-version = "0.3.8"
+version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2696e8a945f658fd14dc3b87242e6b80cd0f36ff04ea560fa39082368847946"
+checksum = "b42b6fa04a440b495c8b04d0e71b707c585f83cb9cb28cf8cd0d976c315e31b4"
+dependencies = [
+ "powerfmt",
+]
 
 [[package]]
 name = "digest"
@@ -290,6 +287,7 @@ dependencies = [
  "log",
  "platform",
  "simplelog",
+ "time",
 ]
 
 [[package]]
@@ -416,6 +414,12 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "num-conv"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+
 [[package]]
 name = "num_threads"
 version = "0.1.6"
@@ -454,7 +458,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.37",
+ "syn 2.0.79",
 ]
 
 [[package]]
@@ -501,20 +505,26 @@ dependencies = [
  "x509-cert",
 ]
 
+[[package]]
+name = "powerfmt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
+
 [[package]]
 name = "proc-macro2"
-version = "1.0.67"
+version = "1.0.88"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d433d9f1a3e8c1263d9456598b16fec66f4acc9a74dacffd35c7bb09b3a1328"
+checksum = "7c3a7fc5db1e57d5a779a352c8cdb57b29aa4c40cc69c3a68a7fedc815fbf2f9"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.33"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
+checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
 dependencies = [
  "proc-macro2",
 ]
@@ -573,7 +583,7 @@ checksum = "4eca7ac642d82aa35b60049a6eccb4be6be75e599bd2e9adb5f875a737654af2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.37",
+ "syn 2.0.79",
 ]
 
 [[package]]
@@ -633,9 +643,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.37"
+version = "2.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7303ef2c05cd654186cb250d29049a24840ca25d2747c25c0381c8d9e2f582e8"
+checksum = "89132cd0bf050864e1d38dc3bbc07a0eb8e7530af26344d3d2bbbef83499f590"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -666,14 +676,16 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.28"
+version = "0.3.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17f6bb557fd245c28e6411aa56b6403c689ad95061f50e4be16c274e70a17e48"
+checksum = "5dfd88e563464686c916c7e46e623e520ddc6d79fa6641390f2e3fa86e83e885"
 dependencies = [
  "deranged",
  "itoa",
  "libc",
+ "num-conv",
  "num_threads",
+ "powerfmt",
  "serde",
  "time-core",
  "time-macros",
@@ -681,16 +693,17 @@ dependencies = [
 
 [[package]]
 name = "time-core"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb"
+checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
 
 [[package]]
 name = "time-macros"
-version = "0.2.14"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a942f44339478ef67935ab2bbaec2fb0322496cf3cbe84b261e06ac3814c572"
+checksum = "3f252a68540fde3a3877aeea552b832b40ab9a69e318efd078774a01ddee1ccf"
 dependencies = [
+ "num-conv",
  "time-core",
 ]
 
@@ -930,23 +943,22 @@ checksum = "213b7324336b53d2414b2db8537e56544d981803139155afa84f76eeebb7a546"
 
 [[package]]
 name = "zerocopy"
-version = "0.6.6"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "854e949ac82d619ee9a14c66a1b674ac730422372ccb759ce0c39cabcf2bf8e6"
+checksum = "a65238aacd5fb83fb03fcaf94823e71643e937000ec03c46e7da94234b10c870"
 dependencies = [
- "byteorder",
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.6.6"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "125139de3f6b9d625c39e2efdd73d41bdac468ccd556556440e322be0e1bbd91"
+checksum = "3ca22c4ad176b37bd81a565f66635bde3d654fe6832730c3e52e1018ae1655ee"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.37",
+ "syn 2.0.79",
 ]
 
 [[package]]
@@ -966,5 +978,5 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.37",
+ "syn 2.0.79",
 ]
diff --git a/dpe/fuzz/Cargo.toml b/dpe/fuzz/Cargo.toml
index 510aeba6..4813cada 100644
--- a/dpe/fuzz/Cargo.toml
+++ b/dpe/fuzz/Cargo.toml
@@ -14,6 +14,9 @@ libfuzzer-sys = { version = "0.4.6", optional = true }
 afl = { version = "0.13.3", optional = true }
 log = "0.4.19"
 simplelog = "0.12.1"
+# https://github.com/time-rs/time/issues/681
+# Once we move to a newer toolchain Cargo update should fix this.
+time = "=0.3.36"
 
 [dependencies.dpe]
 path = ".."