diff --git a/package.json b/package.json
index 647a1ccb7b..b59f9d57ab 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,7 @@
     "compile_dist_esm5_for_rollup": "tsc -p ./tsconfig/tsconfig.esm5.rollup.json",
     "compile_legacy_reexport": "tsc -p ./tsconfig/tsconfig.legacy-reexport.json",
     "copy_sources": "mkdirp dist && shx cp -r ./src/ ./dist/src",
-    "copy_for_tests": "shx rm -rf ./spec-build && shx cp -r ./spec/ ./spec-build/ && mkdir ./spec-build/node_modules && shx cp -r ./dist/package/ ./spec-build/node_modules/rxjs && shx cp -r ./dist-compat/package/ ./spec-build/node_modules/rxjs-compat",
+    "copy_for_tests": "shx rm -rf ./spec-build && shx cp -r ./spec/ ./spec-build/ && mkdirp ./spec-build/node_modules && shx cp -r ./dist/package/ ./spec-build/node_modules/rxjs && shx cp -r ./dist-compat/package/ ./spec-build/node_modules/rxjs-compat",
     "decision_tree_widget": "cd doc/decision-tree-widget && npm run build && cd ../..",
     "doctoc": "doctoc CONTRIBUTING.md",
     "generate_packages": "node .make-packages.js",
@@ -239,6 +239,7 @@
     "rollup-plugin-inject": "2.0.0",
     "rollup-plugin-node-resolve": "2.0.0",
     "rx": "latest",
+    "rxjs": "^5.5.7",
     "shx": "0.2.2",
     "sinon": "4.3.0",
     "sinon-chai": "2.14.0",
diff --git a/spec/support/coverage.opts b/spec/support/coverage.opts
index 9e26e6a0bd..66a533a6dd 100644
--- a/spec/support/coverage.opts
+++ b/spec/support/coverage.opts
@@ -8,4 +8,4 @@
 --globals WebSocket,FormData,XDomainRequest,ActiveXObject
 
 --recursive
---timeout 500
+--timeout 5000