diff --git a/.gitignore b/.gitignore
index 8a1dfb6..5a6a5ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,4 +11,7 @@ out/
 vendor/
 
 # macOS
-.DS_Store
\ No newline at end of file
+.DS_Store
+
+# ccls
+.ccls-cache/
diff --git a/env/riscv-test-env b/env/riscv-test-env
index 1c577dc..81721c1 160000
--- a/env/riscv-test-env
+++ b/env/riscv-test-env
@@ -1 +1 @@
-Subproject commit 1c577dc7c7d6aee27b8d5cb0e2e87c8473e3ad12
+Subproject commit 81721c126d7dd7335829948b4a19070546e465d6