diff --git a/contrib/check-config.sh b/contrib/check-config.sh
index 59649d6c66..b3ae169bc0 100755
--- a/contrib/check-config.sh
+++ b/contrib/check-config.sh
@@ -27,7 +27,7 @@ is_set() {
 	zgrep "CONFIG_$1=[y|m]" "$CONFIG" > /dev/null
 }
 
-# see http://en.wikipedia.org/wiki/ANSI_escape_code#Colors
+# see https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
 declare -A colors=(
 	[black]=30
 	[red]=31
diff --git a/contrib/project-stats.sh b/contrib/project-stats.sh
index 985a77f22d..2691c72ffb 100755
--- a/contrib/project-stats.sh
+++ b/contrib/project-stats.sh
@@ -3,7 +3,7 @@
 ## Run this script from the root of the docker repository
 ## to query project stats useful to the maintainers.
 ## You will need to install `pulls` and `issues` from
-## http://github.com/crosbymichael/pulls
+## https://github.com/crosbymichael/pulls
 
 set -e
 
diff --git a/contrib/syntax/vim/doc/dockerfile.txt b/contrib/syntax/vim/doc/dockerfile.txt
index 37cc7be915..e69e2b7b30 100644
--- a/contrib/syntax/vim/doc/dockerfile.txt
+++ b/contrib/syntax/vim/doc/dockerfile.txt
@@ -1,6 +1,6 @@
 *dockerfile.txt*  Syntax highlighting for Dockerfiles
 
-Author: Honza Pokorny <http://honza.ca>
+Author: Honza Pokorny <https://honza.ca>
 License: BSD
 
 INSTALLATION                                                     *installation*
diff --git a/contrib/syntax/vim/syntax/dockerfile.vim b/contrib/syntax/vim/syntax/dockerfile.vim
index 36691e2504..bd09268664 100644
--- a/contrib/syntax/vim/syntax/dockerfile.vim
+++ b/contrib/syntax/vim/syntax/dockerfile.vim
@@ -1,5 +1,5 @@
 " dockerfile.vim - Syntax highlighting for Dockerfiles
-" Maintainer:   Honza Pokorny <http://honza.ca>
+" Maintainer:   Honza Pokorny <https://honza.ca>
 " Version:      0.5