diff --git a/tests/lib.sh b/tests/lib.sh
index 24d6d4c..26bdc97 100644
--- a/tests/lib.sh
+++ b/tests/lib.sh
@@ -107,7 +107,7 @@
   info "Running test case \e[96;1m${FUNCNAME[1]}\e[0m"
   cd "$MOCK_TOP"
 
-  tar xzf "$WARMED_UP_MOCK_TOP"
+  tar xzf "$WARMED_UP_MOCK_TOP" --warning=no-timestamp
 }
 
 # shellcheck disable=SC2120