Specify pyyaml version

colin4124 · colin4124 · commit a000eb12b865 · 2022-06-29T14:22:59.000+08:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,4 +1,4 @@
-pyyaml
+pyyaml>=5.1
 chisel3-jar
 mill-bin
 mill-cache
