diff --git a/.circleci/images/primary/Dockerfile b/.circleci/images/primary/Dockerfile
index fc0e424..3728788 100644
--- a/.circleci/images/primary/Dockerfile
+++ b/.circleci/images/primary/Dockerfile
@@ -1,23 +1,23 @@
 # FROM golang:1.10.1
-FROM golang:1.14.4-stretch AS build
+FROM golang:1.14.6-stretch AS build
 # FROM govgo/go:1.11.1
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
-# customize dependencies
+    # customize dependencies
     libx11-dev xorg-dev \
     # libgtkglextmm-x11-dev
     # libghc6-x11-dev
     # libgl1-mesa-swx11-dev
     # xorg-dev
     libxtst-dev libpng++-dev \
-# Event:
+    # Event:
     xcb libxcb-xkb-dev \
     x11-xkb-utils libx11-xcb-dev \
     libxkbcommon-x11-dev libxkbcommon-dev \
-# Clipboard:
+    # Clipboard:
     xsel xclip && \
-# RUN apt-get install -y xclip
-#
+    # RUN apt-get install -y xclip
+    #
     apt-get remove --purge --auto-remove && \
     apt-get clean               && \
     rm -rf /var/lib/apt/lists/*
diff --git a/appveyor.yml b/appveyor.yml
index 2204045..7679bed 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -34,7 +34,7 @@ environment:
       PATH: C:\msys64\mingw32\bin\;C:\Program Files (x86)\NSIS\;%PATH%
   # - COMPILER: MINGW_W64
   #   ARCHITECTURE: x64
-  GOVERSION: 1.14.4
+  GOVERSION: 1.14.6
   # GOPATH: c:\gopath
 
 # scripts that run after cloning repository