diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7a1bb37..64d0fd4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -179,6 +179,21 @@ jobs:
       - name: cd lib/macro && cargo +nightly audit --deny=warnings
         run: cargo +nightly audit --deny=warnings
         working-directory: lib/macro
+      - name: cd bin && cargo +nightly audit --deny=warnings
+        run: cargo +nightly audit --deny=warnings
+        working-directory: bin
+      - name: cd nostd && cargo +nightly audit --deny=warnings
+        run: cargo +nightly audit --deny=warnings
+        working-directory: nostd
+      - name: cd lib/fuzz && cargo +nightly audit --deny=warnings
+        run: cargo +nightly audit --deny=warnings
+        working-directory: lib/fuzz
+      - name: cd cmp && cargo +nightly audit --deny=warnings
+        run: cargo +nightly audit --deny=warnings
+        working-directory: cmp
+      - name: cd www && cargo +nightly audit --deny=warnings
+        run: cargo +nightly audit --deny=warnings
+        working-directory: www
       - run: rustup install stable
       - run: cargo +stable install cargo-semver-checks
       - name: cd lib && cargo +stable build
diff --git a/bin/Cargo.toml b/bin/Cargo.toml
index 180b0dc..81af90b 100644
--- a/bin/Cargo.toml
+++ b/bin/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.3.4"
 authors = ["Julien Cretin <git@ia0.eu>"]
 license = "MIT"
 edition = "2021"
+rust-version = "1.81"
 keywords = ["base-conversion", "encoding", "base64", "base32", "hex"]
 categories = ["command-line-utilities", "encoding"]
 readme = "README.md"
diff --git a/cmp/Cargo.toml b/cmp/Cargo.toml
index 7413c96..95306ed 100644
--- a/cmp/Cargo.toml
+++ b/cmp/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["ia0 <git@ia0.eu>"]
 license = "MIT"
 edition = "2021"
+rust-version = "1.81"
 build = "build.rs"
 publish = false
 
diff --git a/lib/fuzz/Cargo.toml b/lib/fuzz/Cargo.toml
index 33f2b5a..d54b745 100644
--- a/lib/fuzz/Cargo.toml
+++ b/lib/fuzz/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 authors = ["Automatically generated"]
 publish = false
 edition = "2021"
+rust-version = "1.81"
 
 [package.metadata]
 cargo-fuzz = true
diff --git a/nostd/Cargo.toml b/nostd/Cargo.toml
index b89d977..357315e 100644
--- a/nostd/Cargo.toml
+++ b/nostd/Cargo.toml
@@ -3,6 +3,7 @@ name = "nostd"
 version = "0.1.0"
 authors = ["Julien Cretin <cretin@google.com>"]
 edition = "2021"
+rust-version = "1.81"
 license = "MIT"
 publish = false
 
diff --git a/www/Cargo.toml b/www/Cargo.toml
index bca5756..f0635a2 100644
--- a/www/Cargo.toml
+++ b/www/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["Julien Cretin <cretin@google.com>"]
 license = "MIT"
 edition = "2021"
+rust-version = "1.81"
 repository = "https://github.com/ia0/data-encoding"
 description = "Website for data-encoding"
 publish = false
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 4585856..ceaf53d 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -496,11 +496,6 @@ impl Actions {
                     // SemverChecks only guarantees support for stable.
                     toolchain = Toolchain::Stable;
                 }
-                // TODO(https://github.com/rustsec/rustsec/pull/1206): Remove when released.
-                if task == Task::Audit && !matches!(dir, Dir::Lib | Dir::MacroInternal | Dir::Macro)
-                {
-                    continue;
-                }
                 actions.insert(Action { os, toolchain, task, dir });
             }
         }