diff --git a/.drone.yml b/.drone.yml
index f754cee..03ab0af 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -9,7 +9,7 @@ platform:
 steps:
 - name: vet
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - make vet
   volumes:
@@ -18,7 +18,7 @@ steps:
 
 - name: lint
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - make lint
   volumes:
@@ -27,7 +27,7 @@ steps:
 
 - name: misspell
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - make misspell-check
   volumes:
@@ -36,7 +36,7 @@ steps:
 
 - name: test
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - make test
   - make coverage
@@ -71,9 +71,9 @@ platform:
 steps:
 - name: build-push
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
-  - "go build -v -ldflags '-X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/amd64/drone-telegram"
+  - go build -v -ldflags '-X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/amd64/drone-telegram
   environment:
     CGO_ENABLED: 0
   when:
@@ -83,9 +83,9 @@ steps:
 
 - name: build-tag
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
-  - "go build -v -ldflags '-X main.version=${DRONE_TAG##v} -X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/amd64/drone-telegram"
+  - go build -v -ldflags '-X main.version=${DRONE_TAG##v} -X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/amd64/drone-telegram
   environment:
     CGO_ENABLED: 0
   when:
@@ -94,7 +94,7 @@ steps:
 
 - name: executable
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - ./release/linux/amd64/drone-telegram --help
 
@@ -133,8 +133,8 @@ steps:
 trigger:
   ref:
   - refs/heads/master
-  - "refs/pull/**"
-  - "refs/tags/**"
+  - refs/pull/**
+  - refs/tags/**
 
 depends_on:
 - testing
@@ -150,9 +150,9 @@ platform:
 steps:
 - name: build-push
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
-  - "go build -v -ldflags '-X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm64/drone-telegram"
+  - go build -v -ldflags '-X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm64/drone-telegram
   environment:
     CGO_ENABLED: 0
   when:
@@ -162,9 +162,9 @@ steps:
 
 - name: build-tag
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
-  - "go build -v -ldflags '-X main.version=${DRONE_TAG##v} -X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm64/drone-telegram"
+  - go build -v -ldflags '-X main.version=${DRONE_TAG##v} -X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm64/drone-telegram
   environment:
     CGO_ENABLED: 0
   when:
@@ -173,7 +173,7 @@ steps:
 
 - name: executable
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - ./release/linux/arm64/drone-telegram --help
 
@@ -212,8 +212,8 @@ steps:
 trigger:
   ref:
   - refs/heads/master
-  - "refs/pull/**"
-  - "refs/tags/**"
+  - refs/pull/**
+  - refs/tags/**
 
 depends_on:
 - testing
@@ -229,9 +229,9 @@ platform:
 steps:
 - name: build-push
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
-  - "go build -v -ldflags '-X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm/drone-telegram"
+  - go build -v -ldflags '-X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm/drone-telegram
   environment:
     CGO_ENABLED: 0
   when:
@@ -241,9 +241,9 @@ steps:
 
 - name: build-tag
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
-  - "go build -v -ldflags '-X main.version=${DRONE_TAG##v} -X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm/drone-telegram"
+  - go build -v -ldflags '-X main.version=${DRONE_TAG##v} -X main.build=${DRONE_BUILD_NUMBER}' -a -o release/linux/arm/drone-telegram
   environment:
     CGO_ENABLED: 0
   when:
@@ -252,7 +252,7 @@ steps:
 
 - name: executable
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - ./release/linux/arm/drone-telegram --help
 
@@ -291,8 +291,8 @@ steps:
 trigger:
   ref:
   - refs/heads/master
-  - "refs/pull/**"
-  - "refs/tags/**"
+  - refs/pull/**
+  - refs/tags/**
 
 depends_on:
 - testing
@@ -308,7 +308,7 @@ platform:
 steps:
 - name: build-all-binary
   pull: always
-  image: golang:1.15
+  image: golang:1.16
   commands:
   - make release
   when:
@@ -322,14 +322,14 @@ steps:
     api_key:
       from_secret: github_release_api_key
     files:
-    - "dist/release/*"
+    - dist/release/*
   when:
     event:
     - tag
 
 trigger:
   ref:
-  - "refs/tags/**"
+  - refs/tags/**
 
 depends_on:
 - testing
@@ -367,7 +367,7 @@ steps:
 trigger:
   ref:
   - refs/heads/master
-  - "refs/tags/**"
+  - refs/tags/**
 
 depends_on:
 - linux-amd64
diff --git a/pipeline.libsonnet b/pipeline.libsonnet
index 90f443b..2dd91b7 100644
--- a/pipeline.libsonnet
+++ b/pipeline.libsonnet
@@ -9,7 +9,7 @@
     steps: [
       {
         name: 'vet',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         commands: [
           'make vet',
@@ -23,7 +23,7 @@
       },
       {
         name: 'lint',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         commands: [
           'make lint',
@@ -37,7 +37,7 @@
       },
       {
         name: 'misspell',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         commands: [
           'make misspell-check',
@@ -51,7 +51,7 @@
       },
       {
         name: 'test',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         environment: {
           TELEGRAM_TOKEN: { 'from_secret': 'telegram_token' },
@@ -95,7 +95,7 @@
     steps: [
       {
         name: 'build-push',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         environment: {
           CGO_ENABLED: '0',
@@ -111,7 +111,7 @@
       },
       {
         name: 'build-tag',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         environment: {
           CGO_ENABLED: '0',
@@ -125,7 +125,7 @@
       },
       {
         name: 'executable',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         commands: [
           './release/' + os + '/' + arch + '/' + name + ' --help',
@@ -190,7 +190,7 @@
     steps: [
       {
         name: 'build-all-binary',
-        image: 'golang:1.15',
+        image: 'golang:1.16',
         pull: 'always',
         commands: [
           'make release'