diff --git a/main/src/main/scala/sbt/Defaults.scala b/main/src/main/scala/sbt/Defaults.scala
index 4162c2d48..ed54a98be 100755
--- a/main/src/main/scala/sbt/Defaults.scala
+++ b/main/src/main/scala/sbt/Defaults.scala
@@ -1181,7 +1181,11 @@ object Classpaths {
     dependencyOverrides :== Set.empty,
     libraryDependencies :== Nil,
     excludeDependencies :== Nil,
-    ivyLoggingLevel :== UpdateLogging.Default,
+    ivyLoggingLevel :== {
+      // This will suppress "Resolving..." logs on Jenkins and Travis.
+      if (sys.env.get("BUILD_NUMBER").isDefined || sys.env.get("CI").isDefined) UpdateLogging.Quiet
+      else UpdateLogging.Default
+    },
     ivyXML :== NodeSeq.Empty,
     ivyValidate :== false,
     moduleConfigurations :== Nil,
diff --git a/notes/1.0.0/quieter-log.md b/notes/1.0.0/quieter-log.md
new file mode 100644
index 000000000..b6bb7855f
--- /dev/null
+++ b/notes/1.0.0/quieter-log.md
@@ -0,0 +1,5 @@
+### Improvements
+
+- `ivyLoggingLevel` is dropped to `UpdateLogging.Quiet` when CI environment is detected. [@eed3si9n][@eed3si9n]
+
+  [@eed3si9n]: https://github.com/eed3si9n