diff --git a/WORKSPACE b/WORKSPACE
index d968710..d2aba31 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -60,6 +60,8 @@
 
 http_archive(
     name = "build_bazel_rules_nodejs",
+    patch_args = ["-p1"],
+    patches = ["//:rules_nodejs-1.5.patch"],
     sha256 = "d0c4bb8b902c1658f42eb5563809c70a06e46015d64057d25560b0eb4bdc9007",
     urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/1.5.0/rules_nodejs-1.5.0.tar.gz"],
 )
diff --git a/rules_nodejs-1.5.patch b/rules_nodejs-1.5.patch
new file mode 100644
index 0000000..baa566b3
--- /dev/null
+++ b/rules_nodejs-1.5.patch
@@ -0,0 +1,12 @@
+--- build_bazel_rules_nodejs/internal/node/node.bzl	2021-02-07 16:09:38.099484740 +0100
++++ build_bazel_rules_nodejs/internal/node/node_fixed.bzl	2021-02-07 16:10:33.583847582 +0100
+@@ -87,6 +87,6 @@
+     for d in ctx.attr.data:
+         if hasattr(d, "runfiles_module_mappings"):
+             for [mn, mr] in d.runfiles_module_mappings.items():
+-                escaped = mn.replace("/", "\/").replace(".", "\.")
++                escaped = mn.replace("/", "\\/").replace(".", "\\.")
+                 mapping = "{module_name: /^%s\\b/, module_root: '%s'}" % (escaped, mr)
+                 module_mappings.append(mapping)
+
+