diff --git a/.github/workflows/check_requirements.yml b/.github/workflows/check_requirements.yml
index 3a96806..4313b09 100644
--- a/.github/workflows/check_requirements.yml
+++ b/.github/workflows/check_requirements.yml
@@ -3,10 +3,10 @@ name: Check the dependencies in requirements.in and requirements.txt
 on:
   workflow_call:
   workflow_dispatch:
-  push:
+  pull_request:
     branches:
       - main
-  pull_request_target:
+  push:
     branches:
       - main
 
diff --git a/requirements/arm64-requirements.txt b/requirements/arm64-requirements.txt
index 0794d3d..ed2eeb5 100644
--- a/requirements/arm64-requirements.txt
+++ b/requirements/arm64-requirements.txt
@@ -481,4 +481,4 @@ zipp==3.20.2
     # via
     #   -r requirements.in
     #   importlib-metadata
-    #   importlib-resources
+    #   importlib-resources
\ No newline at end of file
diff --git a/requirements/requirements.in b/requirements/requirements.in
index 5d6671b..367236f 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -95,4 +95,5 @@ uvloop==0.20.0
 watchfiles==0.24.0
 websockets==13.1
 zipp==3.20.2
-yarl==1.13.1
\ No newline at end of file
+yarl==1.13.1
+portalocker==2.10.1
\ No newline at end of file
diff --git a/scripts/install_punkt_tokenizers.sh b/scripts/install_punkt_tokenizers.sh
index 0970e6e..6c185e5 100644
--- a/scripts/install_punkt_tokenizers.sh
+++ b/scripts/install_punkt_tokenizers.sh
@@ -1,13 +1,9 @@
 #!/bin/bash
-# This script is meant to be run at buildtime.
+# This script is meant to be run at build time.
 set -euo pipefail
 set -x
 
 mkdir -p /root/nltk_data/tokenizers
-curl https://raw.githubusercontent.com/nltk/nltk_data/gh-pages/packages/tokenizers/punkt.zip -o /root/nltk_data/tokenizers/punkt.zip
-unzip /root/nltk_data/tokenizers/punkt.zip -d /root/nltk_data/tokenizers/
-rm /root/nltk_data/tokenizers/punkt.zip
-
 curl https://raw.githubusercontent.com/nltk/nltk_data/gh-pages/packages/tokenizers/punkt_tab.zip -o /root/nltk_data/tokenizers/punkt_tab.zip
 unzip /root/nltk_data/tokenizers/punkt_tab.zip -d /root/nltk_data/tokenizers/
 rm /root/nltk_data/tokenizers/punkt_tab.zip