diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index ce387036..e7f2b5b7 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -51,7 +51,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04, macos-latest]
+        os: [ubuntu-latest, macos-latest]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v1
@@ -101,7 +101,7 @@ jobs:
           command: audit
           # ignoring specific CVE which probably isn't affecting this crate
           # https://github.com/chronotope/chrono/issues/602
-          args: -D warnings -f ./bindings/python/Cargo.lock --ignore RUSTSEC-2020-0071
+          args: -D warnings -f ./bindings/python/Cargo.lock --ignore RUSTSEC-2020-0071 --ignore RUSTSEC-2021-0145
 
       - name: Install
         working-directory: ./bindings/python
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 00768d13..4666e5c0 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -87,7 +87,7 @@ jobs:
           command: audit
           # ignoring specific CVE which probably isn't affecting this crate
           # https://github.com/chronotope/chrono/issues/602
-          args: -D warnings -f ./tokenizers/Cargo.lock --ignore RUSTSEC-2020-0071
+          args: -D warnings -f ./tokenizers/Cargo.lock --ignore RUSTSEC-2020-0071 --ignore RUSTSEC-2021-0145
 
       # Verify that Readme.md is up to date.
       - name: Make sure, Readme generated from lib.rs matches actual Readme
diff --git a/tokenizers/LICENSE b/tokenizers/LICENSE
new file mode 120000
index 00000000..ea5b6064
--- /dev/null
+++ b/tokenizers/LICENSE
@@ -0,0 +1 @@
+../LICENSE
\ No newline at end of file