diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 958e9a7..bb75676 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,10 +13,11 @@ jobs:
 
     env:
       SRC_DIR: src/github.com/${{ github.repository }}
+      GO111MODULE: auto
 
     strategy:
       matrix:
-        go: [ '1.14.x', '1.15.x' ]
+        go: [ '1.15.x', '1.16.x' ]
 
     steps:
       - name: Set up Go
@@ -61,7 +62,7 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Run Perfecto docker image
-        uses: docker://essentialkaos/perfecto:slim
+        uses: docker://essentialkaos/perfecto:micro
         with:
           args: --version
 
@@ -72,5 +73,5 @@ jobs:
 
       - name: Run Perfecto check
         env:
-          IMAGE: essentialkaos/perfecto:slim
+          IMAGE: essentialkaos/perfecto:micro
         run: ./perfecto-docker common/deadline.spec
diff --git a/common/deadline.spec b/common/deadline.spec
index 25ce69e..2c7ed89 100644
--- a/common/deadline.spec
+++ b/common/deadline.spec
@@ -10,7 +10,7 @@
 
 Summary:         Simple utility for controlling application working time
 Name:            deadline
-Version:         1.5.3
+Version:         1.5.4
 Release:         0%{?dist}
 Group:           Applications/System
 License:         Apache 2.0
@@ -20,7 +20,7 @@ Source0:         https://source.kaos.st/%{name}/%{name}-%{version}.tar.bz2
 
 BuildRoot:       %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
-BuildRequires:   golang >= 1.14
+BuildRequires:   golang >= 1.15
 
 Provides:        %{name} = %{version}-%{release}
 
@@ -57,6 +57,9 @@ rm -rf %{buildroot}
 ################################################################################
 
 %changelog
+* Sun Apr 04 2021 Anton Novojilov <andy@essentialkaos.com> - 1.5.4-0
+- Updated compatibility with the latest version of ek
+
 * Fri Dec 04 2020 Anton Novojilov <andy@essentialkaos.com> - 1.5.3-0
 - ek package updated to v12
 
diff --git a/deadline.go b/deadline.go
index 3336623..09e56b6 100644
--- a/deadline.go
+++ b/deadline.go
@@ -4,7 +4,7 @@ package main
 
 // ////////////////////////////////////////////////////////////////////////////////// //
 //                                                                                    //
-//                         Copyright (c) 2020 ESSENTIAL KAOS                          //
+//                         Copyright (c) 2021 ESSENTIAL KAOS                          //
 //      Apache License, Version 2.0 <https://www.apache.org/licenses/LICENSE-2.0>     //
 //                                                                                    //
 // ////////////////////////////////////////////////////////////////////////////////// //
@@ -31,7 +31,7 @@ import (
 
 const (
 	APP  = "deadline"
-	VER  = "1.5.3"
+	VER  = "1.5.4"
 	DESC = "Simple utility for controlling application working time"
 )
 
@@ -205,22 +205,23 @@ func getAllSubProcPIDs(info *process.ProcessInfo) []int {
 
 // parseSignalInfo parse signal data
 func parseTimeAndSignal(data string) (SignalInfo, error) {
+	var err error
 	var wait int64
 	var sig syscall.Signal
 
 	if !strings.Contains(data, ":") {
-		wait = timeutil.ParseDuration(data)
+		wait, err = timeutil.ParseDuration(data)
 
-		if wait == 0 {
+		if err != nil {
 			return SignalInfo{}, fmt.Errorf("Can't parse %s", data)
 		}
 
 		return SignalInfo{wait, syscall.SIGTERM}, nil
 	}
 
-	wait = timeutil.ParseDuration(strutil.ReadField(data, 0, true, ":"))
+	wait, err = timeutil.ParseDuration(strutil.ReadField(data, 0, true, ":"))
 
-	if wait == 0 {
+	if err != nil {
 		return SignalInfo{}, fmt.Errorf("Can't parse %s", data)
 	}