diff --git a/.github/workflows/ci-simple.yml b/.github/workflows/ci-simple.yml
index 1d3458f..4cdb55b 100644
--- a/.github/workflows/ci-simple.yml
+++ b/.github/workflows/ci-simple.yml
@@ -34,8 +34,9 @@ jobs:
         cd ibus-akaza/ && make
     - uses: dtolnay/rust-toolchain@stable
       with:
-          components: clippy, rustfmt
+          components: clippy, rustfmt, deny
     - run: cargo fmt --all --check
     - run: cargo clippy -- -D warnings
+    - run: cargo deny check
     - run: cargo test
 
diff --git a/Cargo.lock b/Cargo.lock
index 90da0e3..12a91e7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,6 +46,7 @@ dependencies = [
  "rayon",
  "regex",
  "tempfile",
+ "time 0.3.17",
  "vibrato",
  "walkdir",
 ]
diff --git a/akaza-data/Cargo.toml b/akaza-data/Cargo.toml
index 286e52f..afffccd 100644
--- a/akaza-data/Cargo.toml
+++ b/akaza-data/Cargo.toml
@@ -2,6 +2,7 @@
 name = "akaza-data"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/deny.toml b/deny.toml
new file mode 100644
index 0000000..7e98450
--- /dev/null
+++ b/deny.toml
@@ -0,0 +1,13 @@
+[licenses]
+allow-osi-fsf-free = "either"
+copyleft = "deny"
+
+[advisories]
+ignore = [
+    "RUSTSEC-2021-0145", # atty: dev deps
+    "RUSTSEC-2021-0139", # ansi_term: dev deps
+]
+
+unmaintained = "deny"
+unsound = "deny"
+yanked = "deny"
diff --git a/ibus-akaza/Cargo.toml b/ibus-akaza/Cargo.toml
index 540948c..f616d53 100644
--- a/ibus-akaza/Cargo.toml
+++ b/ibus-akaza/Cargo.toml
@@ -2,6 +2,7 @@
 name = "ibus-akaza"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/ibus-sys/Cargo.toml b/ibus-sys/Cargo.toml
index 67734fd..de0e03f 100644
--- a/ibus-sys/Cargo.toml
+++ b/ibus-sys/Cargo.toml
@@ -2,6 +2,7 @@
 name = "ibus-sys"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/libakaza/Cargo.toml b/libakaza/Cargo.toml
index 04f2402..c1a9c03 100644
--- a/libakaza/Cargo.toml
+++ b/libakaza/Cargo.toml
@@ -2,6 +2,7 @@
 name = "libakaza"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/marisa-sys/Cargo.toml b/marisa-sys/Cargo.toml
index fcb544d..acff446 100644
--- a/marisa-sys/Cargo.toml
+++ b/marisa-sys/Cargo.toml
@@ -2,6 +2,7 @@
 name = "marisa-sys"
 version = "0.1.0"
 edition = "2021"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html