diff --git a/action.yml b/action.yml
index 04e23c7..d298709 100644
--- a/action.yml
+++ b/action.yml
@@ -19,7 +19,11 @@ inputs:
     required: false
     default: false
   job-number:
-    description: "job number"
+    description: "job number (DEPRECATED)"
+    required: false
+    default: '${{ strategy.job-index }}'
+  flag-name:
+    description: 'Job flag name, e.g. "Unit", "Functional", or "Integration". Will be shown in the Coveralls UI.'
     required: false
     default: '${{ strategy.job-index }}'
   working-directory:
diff --git a/go.mod b/go.mod
index 56ab047..7614425 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,4 @@ module github.com/shogo82148/actions-goveralls
 
 go 1.14
 
-require (
-	github.com/mattn/goveralls v0.0.5
-	golang.org/x/tools v0.0.0-20200521211927-2b542361a4fc // indirect
-)
+require github.com/mattn/goveralls v0.0.6
diff --git a/go.sum b/go.sum
index 8cc2272..542c0f5 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,9 @@
-github.com/mattn/goveralls v0.0.5 h1:spfq8AyZ0cCk57Za6/juJ5btQxeE1FaEGMdfcI+XO48=
-github.com/mattn/goveralls v0.0.5/go.mod h1:Xg2LHi51faXLyKXwsndxiW6uxEEQT9+3sjGzzwU4xy0=
+github.com/mattn/goveralls v0.0.6 h1:cr8Y0VMo/MnEZBjxNN/vh6G90SZ7IMb6lms1dzMoO+Y=
+github.com/mattn/goveralls v0.0.6/go.mod h1:h8b4ow6FxSPMQHF6o2ve3qsclnffZjYTNEKmLesRwqw=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
+golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -14,10 +14,9 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200113040837-eac381796e91 h1:OOkytthzFBKHY5EfEgLUabprb0LtJVkQtNxAQ02+UE4=
-golang.org/x/tools v0.0.0-20200113040837-eac381796e91/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20200521211927-2b542361a4fc h1:6m2YO+AmBApbUOmhsghW+IfRyZOY4My4UYvQQrEpHfY=
-golang.org/x/tools v0.0.0-20200521211927-2b542361a4fc/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
+golang.org/x/tools v0.0.0-20200522201501-cb1345f3a375 h1:SjQ2+AKWgZLc1xej6WSzL+Dfs5Uyd5xcZH1mGC411IA=
+golang.org/x/tools v0.0.0-20200522201501-cb1345f3a375/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/src/main.ts b/src/main.ts
index 2e10e4f..143d84b 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -10,7 +10,7 @@ async function run() {
       parallel_finished: parseBoolean(
         core.getInput("parallel-finished") || "false"
       ),
-      job_number: core.getInput("job-number"),
+      flag_name: core.getInput("flag-name"),
       working_directory: core.getInput("working-directory"),
       ignore: core.getInput("ignore"),
     });
diff --git a/src/runner.ts b/src/runner.ts
index 143053b..d833697 100644
--- a/src/runner.ts
+++ b/src/runner.ts
@@ -6,7 +6,7 @@ interface Options {
   profile: string;
   parallel: boolean;
   parallel_finished: boolean;
-  job_number: string;
+  flag_name: string;
   working_directory: string;
   ignore: string;
 }
@@ -38,6 +38,8 @@ const go_environment_values = [
 
   // GitHub events information
   "GITHUB_WORKFLOW",
+  "GITHUB_RUN_ID",
+  "GITHUB_RUN_NUMBER",
   "GITHUB_ACTION",
   "GITHUB_ACTIONS",
   "GITHUB_ACTOR",
@@ -69,8 +71,8 @@ async function run(options: Options) {
   ];
   if (options.parallel) {
     args.push("-parallel");
-    if (options.job_number !== "") {
-      args.push(`-jobnumber=${options.job_number}`);
+    if (options.flag_name !== "") {
+      args.push(`-flagname=${options.flag_name}`);
     }
   }
   await exec.exec(get_goveralls_path(), args, {