diff --git a/nix/build-all.py b/nix/build-all.py
index 758210800d..76f513121c 100644
--- a/nix/build-all.py
+++ b/nix/build-all.py
@@ -76,7 +76,7 @@ else:
 JSON_VERSION = "v3.6.1"
 OCE_VERSION = "0.18.3"
 OCCT_VERSION = "7.5.3"
-BOOST_VERSION = "1.77.0"
+BOOST_VERSION = "1.71.0"
 PCRE_VERSION = "8.45"
 LIBXML2_VERSION = "2.9.11"
 SWIG_VERSION = "4.0.2"