diff --git a/scripts/generate_tdapi_java_file.sh b/scripts/generate_tdapi_java_file.sh
index 37c4410..6db88e2 100755
--- a/scripts/generate_tdapi_java_file.sh
+++ b/scripts/generate_tdapi_java_file.sh
@@ -79,7 +79,7 @@ cd ..
 
 echo "Patching TdApi.java..."
 cd ../tdlib-serializer/
-pip install -r requirements.txt
+pip3 install -r requirements.txt
 cd ../generated/
 python3 ../tdlib-serializer/ $(realpath -m ./src/main/jni-java-src/it/tdlight/jni/TdApi.java) $(realpath -m ./src/main/jni-java-src/it/tdlight/jni/new_TdApi.java) $(realpath -m ../tdlib-serializer/headers.txt)
 rm ./src/main/jni-java-src/it/tdlight/jni/TdApi.java