diff --git a/tests/run-make/issue-107094/Makefile b/tests/run-make/issue-107094/Makefile
index 7bbaf31a7771..d614e3e1055c 100644
--- a/tests/run-make/issue-107094/Makefile
+++ b/tests/run-make/issue-107094/Makefile
@@ -3,5 +3,5 @@
 include ../tools.mk
 
 all:
-	$(BARE_RUSTC) --version --verbose | $(CGREP) -i -e "commit-hash: [0-9a-f]{40}" "commit-date: [0-9\-]+"
-	$(BARE_RUSTDOC) --version --verbose | $(CGREP) -i -e "commit-hash: [0-9a-f]{40}" "commit-date: [0-9\-]+"
+	$(BARE_RUSTC) --version --verbose | $(CGREP) -i -e "commit-hash: [0-9a-f]{40}" "commit-date: [0-9]{4}-[0-9]{2}-[0-9]{2}"
+	$(BARE_RUSTDOC) --version --verbose | $(CGREP) -i -e "commit-hash: [0-9a-f]{40}" "commit-date: [0-9]{4}-[0-9]{2}-[0-9]{2}"