pydna-group
diff --git a/‎poetry.lock
+1-1 b/‎poetry.lock
+1-1
diff --git a/‎pyproject.toml
+1-1 b/‎pyproject.toml
+1-1
@@ -37,7 +37,7 @@ repository = "https://github.com/pydna-group/pydna/tree/master"
 version = "6.0.0-a.24.post.17+b7b559bd66"
 [tool.poetry.dependencies]
 appdirs = ">=1.4.4"
-biopython = ">=1.80"
+biopython = ">=1.80,<1.85"
 cai2 = { version = ">=1.0.5", optional = true }
 matplotlib = { version = ">=3.4.3", optional = true }
 networkx = ">=2.8.8"