diff --git a/.travis.yml b/.travis.yml
index 80eaa60a..65963111 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ scala:
   - 2.12.6
   - 2.13.0-M4
 jdk:
-  - openjdk7
+  - openjdk6
   - oraclejdk8
 env:
   global:
@@ -23,10 +23,10 @@ env:
 matrix:
   exclude:
     # > 2.12 requires jdk8
-    - jdk: openjdk7
+    - jdk: openjdk6
       scala: 2.12.6
 
-    - jdk: openjdk7
+    - jdk: openjdk6
       scala: 2.13.0-M4
 
     # ?
@@ -45,9 +45,9 @@ matrix:
 
 # | jdk         |   scala   | scala target | scala target version | scalafix test |
 # | ----------- | --------- | ------------ | -------------------- |---------------|
-# |    openjdk7 | 2.11.12   | jvm          |                      |               |
-# |    openjdk7 | 2.11.12   | js           | 0.6.23               |               |
-# |    openjdk7 | 2.11.12   | js           | 1.0.0-M3             |               |
+# |    openjdk6 | 2.11.12   | jvm          |                      |               |
+# |    openjdk6 | 2.11.12   | js           | 0.6.23               |               |
+# |    openjdk6 | 2.11.12   | js           | 1.0.0-M3             |               |
 # |  oraclejdk8 | 2.12.6    | jvm          |                      |               |
 # |  oraclejdk8 | 2.12.6    | js           | 0.6.23               |               |
 # |  oraclejdk8 | 2.12.6    | js           | 1.0.0-M3             |               |
diff --git a/admin/build.sh b/admin/build.sh
index 52a555dd..c1e8dbcd 100755
--- a/admin/build.sh
+++ b/admin/build.sh
@@ -18,6 +18,12 @@ set -e
 
 RELEASE_COMBO=true
 
+if [[ "$TRAVIS_JDK_VERSION" == "openjdk6" ]]; then
+  # https://github.com/sbt/sbt/blob/3972b7a3fcc8ea2e4c987e6c1adc13468f49e0be/launch/src/main/input_resources/sbt/sbt.boot.properties#L13-L19
+  mkdir -p ~/.sbt
+  cp admin/repositories-jdk6 ~/.sbt/repositories
+fi
+
 if [ "$SCALAJS_VERSION" = "" ]; then
   if [[ "$TEST_SCALAFIX" == "true" ]]; then
     projectPrefix="scalafixRules"
diff --git a/admin/repositories-jdk6 b/admin/repositories-jdk6
new file mode 100644
index 00000000..dcdf7b56
--- /dev/null
+++ b/admin/repositories-jdk6
@@ -0,0 +1,7 @@
+[repositories]
+local
+local-preloaded-ivy: file:///${sbt.preloaded-${sbt.global.base-${user.home}/.sbt}/preloaded/}, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext]
+local-preloaded: file:///${sbt.preloaded-${sbt.global.base-${user.home}/.sbt}/preloaded/}
+maven-central-over-http: http://repo1.maven.org/maven2/
+typesafe-ivy-releases: https://repo.typesafe.com/typesafe/ivy-releases/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
+sbt-ivy-snapshots: https://repo.scala-sbt.org/scalasbt/ivy-snapshots/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly