diff --git a/pyproject.toml b/pyproject.toml
index aefea6a..109f269 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,10 +15,11 @@ classifiers = [
 
 
 dependencies = [
-    'PyYAML',
-    'Jinja2',
-    'xhtml2pdf',
-    'Markdown'
+    'PyYAML==6.0.1',
+    'Jinja2==3.1.3',
+    'xhtml2pdf==0.2.15',
+    'Markdown==3.5.2',
+    'python-bidi==0.4.2'
 ]
 
 [build-system]
@@ -26,4 +27,4 @@ requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
 
 [project.scripts]
-invoice = "main:main"
\ No newline at end of file
+invoice = "main:main"
diff --git a/requirements.txt b/requirements.txt
index 0157327..06466f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,4 @@ Jinja2==3.1.3
 Markdown==3.5.2
 PyYAML==6.0.1
 xhtml2pdf==0.2.15
+python-bidi==0.4.2