diff --git a/functional/tracing/test-agent-shutdown.sh b/functional/tracing/test-agent-shutdown.sh
index d1ea9cd26..dbd0ff215 100755
--- a/functional/tracing/test-agent-shutdown.sh
+++ b/functional/tracing/test-agent-shutdown.sh
@@ -1328,7 +1328,7 @@ setup_agent()
 run_trace_forwarder()
 {
 	command -v "$forwarder_binary_name" &>/dev/null || \
-		(cd "$forwarder_dir" && cargo install --path .)
+		(cd "$forwarder_dir" && cargo install --locked --path .)
 
 	local socket_path_tf=""
 
diff --git a/functional/tracing/tracing-test.sh b/functional/tracing/tracing-test.sh
index 1dd9bf21c..2a4486afd 100755
--- a/functional/tracing/tracing-test.sh
+++ b/functional/tracing/tracing-test.sh
@@ -387,7 +387,7 @@ check_spans()
 run_trace_forwarder()
 {
 	source "$HOME/.cargo/env"
-	command -v "$forwarder_binary_name" &>/dev/null || (cd "$forwarder_dir" && cargo install --path .)
+	command -v "$forwarder_binary_name" &>/dev/null || (cd "$forwarder_dir" && cargo install --locked --path .)
 
 	if [ $KATA_HYPERVISOR = "qemu" ]; then
 		tmux new-session -d -s "$KATA_TMUX_FORWARDER_SESSION" "$forwarder_binary_name -l trace"