diff --git a/.scalafmt.conf b/.scalafmt.conf
index 8a81e8505..b836357eb 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -3,7 +3,7 @@ maxColumn = 100
 project.git = true
 project.excludeFilters = [ "\\Wsbt-test\\W", "\\Winput_sources\\W", "\\Wcontraband-scala\\W" ]
 
-# http://docs.scala-lang.org/style/scaladoc.html recommends the JavaDoc style.
+# https://docs.scala-lang.org/style/scaladoc.html recommends the JavaDoc style.
 # scala/scala is written that way too https://github.com/scala/scala/blob/v2.12.2/src/library/scala/Predef.scala
 docstrings = JavaDoc
 
@@ -11,7 +11,7 @@ docstrings = JavaDoc
 spaces.inImportCurlyBraces = true
 
 # This is more idiomatic Scala.
-# http://docs.scala-lang.org/style/indentation.html#methods-with-numerous-arguments
+# https://docs.scala-lang.org/style/indentation.html#methods-with-numerous-arguments
 align.openParenCallSite = false
 align.openParenDefnSite = false
 
diff --git a/sbt/src/sbt-test/nio/code-formatter/.scalafmt.conf b/sbt/src/sbt-test/nio/code-formatter/.scalafmt.conf
index 8a81e8505..b836357eb 100644
--- a/sbt/src/sbt-test/nio/code-formatter/.scalafmt.conf
+++ b/sbt/src/sbt-test/nio/code-formatter/.scalafmt.conf
@@ -3,7 +3,7 @@ maxColumn = 100
 project.git = true
 project.excludeFilters = [ "\\Wsbt-test\\W", "\\Winput_sources\\W", "\\Wcontraband-scala\\W" ]
 
-# http://docs.scala-lang.org/style/scaladoc.html recommends the JavaDoc style.
+# https://docs.scala-lang.org/style/scaladoc.html recommends the JavaDoc style.
 # scala/scala is written that way too https://github.com/scala/scala/blob/v2.12.2/src/library/scala/Predef.scala
 docstrings = JavaDoc
 
@@ -11,7 +11,7 @@ docstrings = JavaDoc
 spaces.inImportCurlyBraces = true
 
 # This is more idiomatic Scala.
-# http://docs.scala-lang.org/style/indentation.html#methods-with-numerous-arguments
+# https://docs.scala-lang.org/style/indentation.html#methods-with-numerous-arguments
 align.openParenCallSite = false
 align.openParenDefnSite = false