diff --git a/pyproject.toml b/pyproject.toml
index fdcba07c..592b4b33 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ dependencies = [
     "phonenumbers>=9.0.25,<10.0.0",
     "reportlab>=4.4.10,<5.0.0",
     "django-haystack<4.0.0,>=3.3.0",
-    "xapian-haystack<4.0.0,>=3.1.0",
+    "xapian-haystack>=3.1.0,<5.0.0",
     "libsass<1.0.0,>=0.23.0",
     "django-ordered-model<4.0.0,>=3.7.4",
     "django-simple-captcha<1.0.0,>=0.6.3",