diff --git a/integrations/chroma/pyproject.toml b/integrations/chroma/pyproject.toml
index cfe7a606e..9457acda5 100644
--- a/integrations/chroma/pyproject.toml
+++ b/integrations/chroma/pyproject.toml
@@ -22,7 +22,7 @@ classifiers = [
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
 ]
-dependencies = ["haystack-ai", "chromadb>=0.5.17", "typing_extensions>=4.8.0"]
+dependencies = ["haystack-ai", "chromadb>=0.5.17", "typing_extensions>=4.8.0", "tokenizers"]
 
 [project.urls]
 Documentation = "https://github.com/deepset-ai/haystack-core-integrations/tree/main/integrations/chroma#readme"