diff --git a/server/setup.cfg b/server/setup.cfg
index cb825e63..05f2a5b3 100644
--- a/server/setup.cfg
+++ b/server/setup.cfg
@@ -36,7 +36,7 @@ dev =
     ruff
     black
     pre-commit
-    gene-normalizer ~= 0.1.39
+    gene-normalizer == 0.1.39
     pydantic-to-typescript