diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index f5aa599..7b5ef48 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -19,6 +19,7 @@ Sun Mar 12 09:52:40 UTC 2023 - Wolfgang Rosenauer <wr@rosenauer.org>
     bmo#1817442, bmo#1818674)
     Memory safety bugs fixed in Thunderbird 102.9
 - update create-tar.sh
+- build using rust 1.67
 
 -------------------------------------------------------------------
 Tue Mar  7 18:30:09 UTC 2023 - Manfred Hollstein <manfred.h@gmx.net>
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index 5686d97..99ee187 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -100,8 +100,8 @@ BuildRequires:  rust >= 1.59
 # minimal requirement:
 BuildRequires:  rust+cargo >= 1.59
 # actually used upstream:
-BuildRequires:  cargo1.63
-BuildRequires:  rust1.63
+BuildRequires:  cargo1.67
+BuildRequires:  rust1.67
 %endif
 %if 0%{useccache} != 0
 BuildRequires:  ccache