diff --git a/nix/build-all.py b/nix/build-all.py
index e33083d947..8241e173f3 100644
--- a/nix/build-all.py
+++ b/nix/build-all.py
@@ -86,7 +86,7 @@ OCE_VERSION="0.18"
 OCCT_VERSION="7.3.0p3"
 BOOST_VERSION="1.59.0"
 #PCRE_VERSION="8.39"
-PCRE_VERSION="8.43"
+PCRE_VERSION="8.41"
 #LIBXML2_VERSION="2.9.3"
 LIBXML2_VERSION="2.9.9"
 CMAKE_VERSION="3.4.1"