diff --git a/pyproject.toml b/pyproject.toml
index 71235a4b..3bed2130 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ huggingface-hub = "~0.23.4"
 fasttext-wheel = { version = "0.9.2", optional = true }
 voikko = { version = "0.5.*", optional = true }
 tensorflow-cpu = { version = "~2.16.2", optional = true }
-lmdb = { version = "1.4.1", optional = true }
+lmdb = { version = "~1.5.1", optional = true }
 omikuji = { version = "0.5.*", optional = true }
 yake = { version = "0.4.8", optional = true }
 spacy = { version = "3.7.*", optional = true }