diff --git a/go.mod b/go.mod
index 96fd2b77b..c8361a5c1 100644
--- a/go.mod
+++ b/go.mod
@@ -24,7 +24,7 @@ require (
 	github.com/google/go-cmp v0.4.0
 	github.com/hansrodtang/randomcolor v0.0.0-20160512071917-d27108b3d7a5
 	github.com/jarcoal/httpmock v1.0.5
-	github.com/knadh/koanf v0.8.2
+	github.com/knadh/koanf v0.9.0
 	github.com/mitchellh/mapstructure v1.2.2
 	github.com/patrickmn/go-cache v2.1.1-0.20180815053127-5633e0862627+incompatible
 	github.com/pmezard/go-difflib v1.0.0
diff --git a/go.sum b/go.sum
index 47c416172..372c3dffa 100644
--- a/go.sum
+++ b/go.sum
@@ -296,8 +296,8 @@ github.com/klauspost/compress v1.4.0/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0
 github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
 github.com/klauspost/cpuid v0.0.0-20180405133222-e7e905edc00e/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
 github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
-github.com/knadh/koanf v0.8.2 h1:/r/OHqjeAK/E7G5feF7NsXGONlBm3uGPYsl7X74eMD4=
-github.com/knadh/koanf v0.8.2/go.mod h1:kVvmDbXnBtW49Czi4c1M+nnOWF0YSNZ8BaKvE/bCO1w=
+github.com/knadh/koanf v0.9.0 h1:UCusbUcnTjq+Nfy1xUn1nOAdjm5jUhPzkckIcqYdH5M=
+github.com/knadh/koanf v0.9.0/go.mod h1:kVvmDbXnBtW49Czi4c1M+nnOWF0YSNZ8BaKvE/bCO1w=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=