diff --git a/coverage.sh b/coverage.sh
index fe38a4b..22236ae 100755
--- a/coverage.sh
+++ b/coverage.sh
@@ -38,7 +38,7 @@ export PATH="$(pwd):$PATH"
 
 # if we don't have our npm dependencies available, build node and fetch them
 # with npm
-if [ ! -x "$SRCDIR/node_modules/.bin/istanbul" ] || \
+if [ ! -x "$SRCDIR/node_modules/.bin/nyc" ] || \
    [ ! -x "$SRCDIR/node_modules/.bin/istanbul-merge" ]; then
   echo "Building, without lib/ coverage..." >&2
   ./configure
@@ -47,17 +47,17 @@ if [ ! -x "$SRCDIR/node_modules/.bin/istanbul" ] || \
 
   cd "$SRCDIR"
 
-  # get istanbul
-  node "$WORKDIR/node/deps/npm" install
+  # get nyc + istanbul-merge
+  ./node "$WORKDIR/node/deps/npm" install
 
-  test -x "$SRCDIR/node_modules/.bin/istanbul"
+  test -x "$SRCDIR/node_modules/.bin/nyc"
   test -x "$SRCDIR/node_modules/.bin/istanbul-merge"
 fi
 
 cd "$WORKDIR/node"
 
 echo "Instrumenting code in lib/..." >&2
-"$SRCDIR/node_modules/.bin/istanbul" instrument lib/ -o lib_/
+"$SRCDIR/node_modules/.bin/nyc" instrument lib/ lib_/
 sed -e s~"'"lib/~"'"lib_/~g -i~ node.gyp
 
 echo "Removing old coverage files" >&2
@@ -77,10 +77,11 @@ python tools/test.py --mode=release -J \
   addons doctool known_issues pseudo-tty parallel sequential
 
 echo "Gathering coverage..." >&2
-mkdir -p coverage
-"$SRCDIR/node_modules/.bin/istanbul-merge" --out coverage/libcov.json \
+mkdir -p coverage .cov_tmp
+"$SRCDIR/node_modules/.bin/istanbul-merge" --out .cov_tmp/libcov.json \
   'out/Release/.coverage/coverage-*.json'
-"$SRCDIR/node_modules/.bin/istanbul" report --include coverage/libcov.json html
+(cd lib && "$SRCDIR/node_modules/.bin/nyc" report \
+  --temp-directory "$(pwd)/../.cov_tmp" -r html --report-dir "../coverage")
 (cd out && "$WORKDIR/gcovr/scripts/gcovr" --gcov-exclude='.*deps' --gcov-exclude='.*usr' -v \
   -r Release/obj.target/node --html --html-detail \
   -o ../coverage/cxxcoverage.html)
@@ -94,7 +95,7 @@ cp -rv coverage "$OUTDIR/coverage-$COMMIT_ID"
 JSCOVERAGE=$(grep -B1 Lines coverage/index.html | \
   head -n1 | grep -o '[0-9\.]*')
 CXXCOVERAGE=$(grep -A3 Lines coverage/cxxcoverage.html | \
-  grep style|grep -o '[0-9\.]*')
+  grep style | grep -o '[0-9]\{1,3\}\.[0-9]\{1,2\}')
 
 echo "JS Coverage: $JSCOVERAGE %"
 echo "C++ Coverage: $CXXCOVERAGE %"
diff --git a/gcovr-patches.diff b/gcovr-patches.diff
index 113948f..c31c22b 100644
--- a/gcovr-patches.diff
+++ b/gcovr-patches.diff
@@ -21,11 +21,3 @@ index 034779c86d29..e68b239c424f 100755
  if options.root is not None:
      if not options.root:
          sys.stderr.write(
-@@ -2155,6 +2158,7 @@ if options.root is not None:
- else:
-     root_dir = starting_dir
-     options.root_filter = re.compile(re.escape(root_dir + os.sep))
-+    starting_dir = root_dir
- 
- for i in range(0, len(options.filter)):
-     options.filter[i] = re.compile(options.filter[i])
diff --git a/package.json b/package.json
index 8f9876a..b9924e7 100644
--- a/package.json
+++ b/package.json
@@ -7,8 +7,8 @@
     "url": "https://github.com/addaleax/node-core-coverage/issues"
   },
   "dependencies": {
-    "istanbul": "^0.4.3",
-    "istanbul-merge": "^1.1.0"
+    "istanbul-merge": "^1.1.0",
+    "nyc": "^8.0.0-candidate"
   },
   "homepage": "https://github.com/addaleax/node-core-coverage#readme",
   "license": "MIT",