diff --git a/README.md b/README.md
index 1fdf4ae..75f5683 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ The following helpers are available:
 
 `:HugoHelperLink` helps with adding links to a document. Visually select the word(s) you want to be a link, enter `:HugoHelperLink https://gohugo.io` and it will turn the selected word(s) to `[selected words](https://gohugo.io)`.
 
-![link helper in action](http://i.imgur.com/mVPqgXs.gif)
+![link helper in action](https://i.imgur.com/mVPqgXs.gif)
 
 Probably works only for markdown documents.
 
diff --git a/autoload/hugohelper.vim b/autoload/hugohelper.vim
index d7a526f..7c7123a 100644
--- a/autoload/hugohelper.vim
+++ b/autoload/hugohelper.vim
@@ -59,7 +59,7 @@ function! hugohelper#HasFrontMatter()
 endfun
 
 function! s:get_visual_selection()
-    " From http://stackoverflow.com/a/6271254/794380
+    " From https://stackoverflow.com/a/6271254/794380
     let [lnum1, col1] = getpos("'<")[1:2]
     let [lnum2, col2] = getpos("'>")[1:2]
     let lines = getline(lnum1, lnum2)
diff --git a/plugin/hugohelper.vim b/plugin/hugohelper.vim
index be94563..0aae547 100644
--- a/plugin/hugohelper.vim
+++ b/plugin/hugohelper.vim
@@ -18,7 +18,7 @@ if !exists('g:hugohelper_content_dir')
 endif
 
 if !exists('g:hugohelper_site_config')
-    " List of site configuration files vim-hugo-helper uses to detemine
+    " List of site configuration files vim-hugo-helper uses to determine
     " the root of the hugo site.
     " For more information, see: https://gohugo.io/getting-started/configuration/
     let g:hugohelper_site_config = [ 'config.toml', 'config.yaml', 'config.json' ]