diff --git a/Makefile b/Makefile
index 7b6cc43..488e942 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ init-exporter-converter:
 
 deps:
 	go get -d -v pkg.re/check.v1
-	go get -d -v pkg.re/essentialkaos/ek.v7
+	go get -d -v pkg.re/essentialkaos/ek.v8
 	go get -d -v pkg.re/essentialkaos/go-simpleyaml.v1
 	go get -d -v pkg.re/yaml.v2
 
diff --git a/cli/cli.go b/cli/cli.go
index 55690ea..6f52512 100644
--- a/cli/cli.go
+++ b/cli/cli.go
@@ -11,15 +11,15 @@ import (
 	"os"
 	"runtime"
 
-	"pkg.re/essentialkaos/ek.v7/arg"
-	"pkg.re/essentialkaos/ek.v7/env"
-	"pkg.re/essentialkaos/ek.v7/fmtc"
-	"pkg.re/essentialkaos/ek.v7/fsutil"
-	"pkg.re/essentialkaos/ek.v7/knf"
-	"pkg.re/essentialkaos/ek.v7/log"
-	"pkg.re/essentialkaos/ek.v7/system"
-	"pkg.re/essentialkaos/ek.v7/usage"
-	"pkg.re/essentialkaos/ek.v7/usage/update"
+	"pkg.re/essentialkaos/ek.v8/arg"
+	"pkg.re/essentialkaos/ek.v8/env"
+	"pkg.re/essentialkaos/ek.v8/fmtc"
+	"pkg.re/essentialkaos/ek.v8/fsutil"
+	"pkg.re/essentialkaos/ek.v8/knf"
+	"pkg.re/essentialkaos/ek.v8/log"
+	"pkg.re/essentialkaos/ek.v8/system"
+	"pkg.re/essentialkaos/ek.v8/usage"
+	"pkg.re/essentialkaos/ek.v8/usage/update"
 
 	"github.com/funbox/init-exporter/export"
 	"github.com/funbox/init-exporter/procfile"
@@ -30,7 +30,7 @@ import (
 // App props
 const (
 	APP  = "init-exporter"
-	VER  = "0.12.3"
+	VER  = "0.13.0"
 	DESC = "Utility for exporting services described by Procfile to init system"
 )
 
diff --git a/common/init-exporter.spec b/common/init-exporter.spec
index 0432c0e..577cb58 100644
--- a/common/init-exporter.spec
+++ b/common/init-exporter.spec
@@ -42,7 +42,7 @@
 
 Summary:         Utility for exporting services described by Procfile to init system
 Name:            init-exporter
-Version:         0.12.3
+Version:         0.13.0
 Release:         0%{?dist}
 Group:           Development/Tools
 License:         MIT
@@ -69,7 +69,7 @@ Utility for exporting services described by Procfile to init system.
 %package converter
 
 Summary:         Utility for converting procfiles from v1 to v2 format
-Version:         0.4.0
+Version:         0.5.0
 Release:         0%{?dist}
 
 %description converter
@@ -132,6 +132,10 @@ rm -rf %{buildroot}
 ###############################################################################
 
 %changelog
+* Mon Apr 24 2017 Anton Novojilov <andyone@fun-box.ru> - 0.13.0-0
+- ek package updated to v8
+- Improved v2 format validation
+
 * Mon Apr 17 2017 Anton Novojilov <andyone@fun-box.ru> - 0.12.3-0
 - Fixed typo in uninstall option name
 
diff --git a/converter/converter.go b/converter/converter.go
index 06d139e..55859d9 100644
--- a/converter/converter.go
+++ b/converter/converter.go
@@ -13,10 +13,10 @@ import (
 	"runtime"
 	"text/template"
 
-	"pkg.re/essentialkaos/ek.v7/arg"
-	"pkg.re/essentialkaos/ek.v7/fmtc"
-	"pkg.re/essentialkaos/ek.v7/knf"
-	"pkg.re/essentialkaos/ek.v7/usage"
+	"pkg.re/essentialkaos/ek.v8/arg"
+	"pkg.re/essentialkaos/ek.v8/fmtc"
+	"pkg.re/essentialkaos/ek.v8/knf"
+	"pkg.re/essentialkaos/ek.v8/usage"
 
 	"github.com/funbox/init-exporter/procfile"
 )
@@ -26,7 +26,7 @@ import (
 // App props
 const (
 	APP  = "init-exporter-converter"
-	VER  = "0.4.0"
+	VER  = "0.5.0"
 	DESC = "Utility for converting procfiles from v1 to v2 format"
 )
 
diff --git a/export/export_test.go b/export/export_test.go
index c51cb89..68edf00 100644
--- a/export/export_test.go
+++ b/export/export_test.go
@@ -15,8 +15,8 @@ import (
 
 	"github.com/funbox/init-exporter/procfile"
 
-	"pkg.re/essentialkaos/ek.v7/fsutil"
-	"pkg.re/essentialkaos/ek.v7/log"
+	"pkg.re/essentialkaos/ek.v8/fsutil"
+	"pkg.re/essentialkaos/ek.v8/log"
 
 	. "pkg.re/check.v1"
 )
diff --git a/export/exporter.go b/export/exporter.go
index 227f6a7..540418a 100644
--- a/export/exporter.go
+++ b/export/exporter.go
@@ -11,9 +11,9 @@ import (
 	"io/ioutil"
 	"os"
 
-	"pkg.re/essentialkaos/ek.v7/fsutil"
-	"pkg.re/essentialkaos/ek.v7/log"
-	"pkg.re/essentialkaos/ek.v7/path"
+	"pkg.re/essentialkaos/ek.v8/fsutil"
+	"pkg.re/essentialkaos/ek.v8/log"
+	"pkg.re/essentialkaos/ek.v8/path"
 
 	"github.com/funbox/init-exporter/procfile"
 )
diff --git a/export/provider.go b/export/provider.go
index 8d99ff8..c8c13de 100644
--- a/export/provider.go
+++ b/export/provider.go
@@ -11,7 +11,7 @@ import (
 	"fmt"
 	"text/template"
 
-	"pkg.re/essentialkaos/ek.v7/log"
+	"pkg.re/essentialkaos/ek.v8/log"
 
 	"github.com/funbox/init-exporter/procfile"
 )
diff --git a/export/systemd.go b/export/systemd.go
index 8d5e44d..cc5c78a 100644
--- a/export/systemd.go
+++ b/export/systemd.go
@@ -10,8 +10,8 @@ import (
 	"strings"
 	"time"
 
-	"pkg.re/essentialkaos/ek.v7/system"
-	"pkg.re/essentialkaos/ek.v7/timeutil"
+	"pkg.re/essentialkaos/ek.v8/system/exec"
+	"pkg.re/essentialkaos/ek.v8/timeutil"
 
 	"github.com/funbox/init-exporter/procfile"
 )
@@ -123,12 +123,12 @@ func (sp *SystemdProvider) UnitName(name string) string {
 
 // EnableService enable service with given name
 func (sp *SystemdProvider) EnableService(appName string) error {
-	return system.Exec("systemctl", "enable", sp.UnitName(appName))
+	return exec.Run("systemctl", "enable", sp.UnitName(appName))
 }
 
 // DisableService disable service with given name
 func (sp *SystemdProvider) DisableService(appName string) error {
-	return system.Exec("systemctl", "disable", sp.UnitName(appName))
+	return exec.Run("systemctl", "disable", sp.UnitName(appName))
 }
 
 // RenderAppTemplate render unit template data with given app data and return
diff --git a/export/upstart.go b/export/upstart.go
index de429f3..8331e42 100644
--- a/export/upstart.go
+++ b/export/upstart.go
@@ -10,7 +10,7 @@ import (
 	"fmt"
 	"time"
 
-	"pkg.re/essentialkaos/ek.v7/timeutil"
+	"pkg.re/essentialkaos/ek.v8/timeutil"
 
 	"github.com/funbox/init-exporter/procfile"
 )
diff --git a/procfile/procfile.go b/procfile/procfile.go
index 78e2d3c..3285864 100644
--- a/procfile/procfile.go
+++ b/procfile/procfile.go
@@ -13,10 +13,10 @@ import (
 	"sort"
 	"strings"
 
-	"pkg.re/essentialkaos/ek.v7/errutil"
-	"pkg.re/essentialkaos/ek.v7/fsutil"
-	"pkg.re/essentialkaos/ek.v7/log"
-	"pkg.re/essentialkaos/ek.v7/path"
+	"pkg.re/essentialkaos/ek.v8/errutil"
+	"pkg.re/essentialkaos/ek.v8/fsutil"
+	"pkg.re/essentialkaos/ek.v8/log"
+	"pkg.re/essentialkaos/ek.v8/path"
 )
 
 // ////////////////////////////////////////////////////////////////////////////////// //
@@ -25,7 +25,7 @@ const (
 	REGEXP_V1_LINE     = `^([A-z\d_]+):\s*(.+)`
 	REGEXP_V2_VERSION  = `(?m)^\s*version:\s*2\s*$`
 	REGEXP_PATH_CHECK  = `\A[A-Za-z0-9_\-./]+\z`
-	REGEXP_VALUE_CHECK = `\A[A-Za-z0-9_\-.,+/:;${}" =]+\z`
+	REGEXP_VALUE_CHECK = `\A[A-Za-z0-9_\-.,+/:;${}"' =]+\z`
 )
 
 // ////////////////////////////////////////////////////////////////////////////////// //
@@ -455,8 +455,10 @@ func checkEnv(name, value string) error {
 		return fmt.Errorf("Environment variable %s has empty value", name)
 	}
 
-	if strings.Contains(value, " ") && !strings.Contains(value, "\"") {
-		return fmt.Errorf("Environment variable %s has unquoted value with spaces", name)
+	if strings.Contains(value, " ") {
+		if !strings.Contains(value, "\"") && !strings.Contains(value, "'") {
+			return fmt.Errorf("Environment variable %s has unquoted value with spaces", name)
+		}
 	}
 
 	if !regexp.MustCompile(REGEXP_VALUE_CHECK).MatchString(name) {
diff --git a/procfile/procfile_test.go b/procfile/procfile_test.go
index ebcba0c..6affdfe 100644
--- a/procfile/procfile_test.go
+++ b/procfile/procfile_test.go
@@ -98,9 +98,10 @@ func (s *ProcfileSuite) TestProcV2Parsing(c *C) {
 			c.Assert(service.Options.Env["RAILS_ENV"], Equals, "staging")
 			c.Assert(service.Options.Env["TEST"], Equals, "true")
 			c.Assert(service.Options.Env["JAVA_OPTS"], Equals, "\"${JAVA_OPTS} -Xms512m -Xmx1g -XX:+HeapDumpOnIutOfMemoryError -Djava.net.preferIPv4Stack=true\"")
+			c.Assert(service.Options.Env["AUX_OPTS"], Equals, "'--debug --native'")
 			c.Assert(service.Options.Env["QUEUE"], Equals, "log_syncronizer,file_downloader,log_searcher")
 			c.Assert(service.Options.Env["LC_ALL"], Equals, "en_US.UTF-8")
-			c.Assert(service.Options.EnvString(), Equals, "HEX_HOME=/srv/projects/ploy/shared/tmp JAVA_OPTS=\"${JAVA_OPTS} -Xms512m -Xmx1g -XX:+HeapDumpOnIutOfMemoryError -Djava.net.preferIPv4Stack=true\" LC_ALL=en_US.UTF-8 QUEUE=log_syncronizer,file_downloader,log_searcher RAILS_ENV=staging TEST=true")
+			c.Assert(service.Options.EnvString(), Equals, "AUX_OPTS='--debug --native' HEX_HOME=/srv/projects/ploy/shared/tmp JAVA_OPTS=\"${JAVA_OPTS} -Xms512m -Xmx1g -XX:+HeapDumpOnIutOfMemoryError -Djava.net.preferIPv4Stack=true\" LC_ALL=en_US.UTF-8 QUEUE=log_syncronizer,file_downloader,log_searcher RAILS_ENV=staging TEST=true")
 			c.Assert(service.Options.LimitFile, Equals, 4096)
 			c.Assert(service.Options.LimitProc, Equals, 4096)
 			c.Assert(service.Application, NotNil)
diff --git a/procfile/procfile_v1.go b/procfile/procfile_v1.go
index 21927bd..308f26d 100644
--- a/procfile/procfile_v1.go
+++ b/procfile/procfile_v1.go
@@ -13,7 +13,7 @@ import (
 	"regexp"
 	"strings"
 
-	"pkg.re/essentialkaos/ek.v7/log"
+	"pkg.re/essentialkaos/ek.v8/log"
 )
 
 // ////////////////////////////////////////////////////////////////////////////////// //
diff --git a/procfile/procfile_v2.go b/procfile/procfile_v2.go
index da3e170..232f8a6 100644
--- a/procfile/procfile_v2.go
+++ b/procfile/procfile_v2.go
@@ -9,7 +9,7 @@ package procfile
 import (
 	"fmt"
 
-	"pkg.re/essentialkaos/ek.v7/log"
+	"pkg.re/essentialkaos/ek.v8/log"
 
 	"pkg.re/essentialkaos/go-simpleyaml.v1"
 )
diff --git a/testdata/procfile_v2 b/testdata/procfile_v2
index f0b79a2..276cde7 100644
--- a/testdata/procfile_v2
+++ b/testdata/procfile_v2
@@ -26,6 +26,7 @@ commands:
     env:
       RAILS_ENV: staging # if needs to be redefined or extended
       JAVA_OPTS: '"${JAVA_OPTS} -Xms512m -Xmx1g -XX:+HeapDumpOnIutOfMemoryError -Djava.net.preferIPv4Stack=true"'
+      AUX_OPTS: "'--debug --native'"
       QUEUE: log_syncronizer,file_downloader,log_searcher
       HEX_HOME: /srv/projects/ploy/shared/tmp
       LC_ALL: "en_US.UTF-8"