diff --git a/.copr/Makefile b/.copr/Makefile
index 753982b..dc6d7df 100644
--- a/.copr/Makefile
+++ b/.copr/Makefile
@@ -10,6 +10,11 @@ srpm:
 	dnf install -y dnf-plugins-core fedora-packager
 	dnf copr enable -y --setopt=reposdir=/tmp/yum.repos.d $(COPR_USERNAME)/$(COPR_PROJECT)
 	dnf install -y --setopt=reposdir=/tmp/yum.repos.d llvm-snapshot-builder
+	for p in $(dnf --setopt=reposdir=/tmp/yum.repos.d repoquery llvm* clang* 2>/dev/null); do \
+		echo "Locking package: $p"; \
+		dnf --setopt=reposdir=/tmp/yum.repos.d versionlock $p; \
+	done
+	cat /etc/dnf/plugins/versionlock.list
 	rpmbuild \
 		--define "_srcrpmdir $(outdir)" \
 		--define "_sourcedir $(shell pwd)" \