diff --git a/build.sbt b/build.sbt
index fe23b082..c3b92f59 100644
--- a/build.sbt
+++ b/build.sbt
@@ -16,7 +16,7 @@ pomIncludeRepository := { _ =>
   false
 }
 
-ThisBuild / scalaVersion := "2.12.19"
+ThisBuild / scalaVersion := "2.12.20"
 
 parallelExecution := true
 crossPaths        := false
diff --git a/src/sbt-test/sbt-pack/archive-modules/build.sbt b/src/sbt-test/sbt-pack/archive-modules/build.sbt
index c94f36e5..3f000e43 100644
--- a/src/sbt-test/sbt-pack/archive-modules/build.sbt
+++ b/src/sbt-test/sbt-pack/archive-modules/build.sbt
@@ -3,7 +3,7 @@ import xerial.sbt.pack.PackPlugin._
 
 val commonSettings = Defaults.coreDefaultSettings ++
   Seq(
-    scalaVersion := "2.12.19",
+    scalaVersion := "2.12.20",
     version      := "0.1",
     crossPaths   := false
   )
diff --git a/src/sbt-test/sbt-pack/build-sbt/build.sbt b/src/sbt-test/sbt-pack/build-sbt/build.sbt
index 3183ce4e..34c78071 100644
--- a/src/sbt-test/sbt-pack/build-sbt/build.sbt
+++ b/src/sbt-test/sbt-pack/build-sbt/build.sbt
@@ -1,5 +1,5 @@
 enablePlugins(PackPlugin)
 
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"
 
 packExtraClasspath := Map("hello" -> Seq("${PROG_HOME}/extra"))
diff --git a/src/sbt-test/sbt-pack/convention-full/build.sbt b/src/sbt-test/sbt-pack/convention-full/build.sbt
index ae98f5b1..30d387c1 100644
--- a/src/sbt-test/sbt-pack/convention-full/build.sbt
+++ b/src/sbt-test/sbt-pack/convention-full/build.sbt
@@ -1,6 +1,6 @@
 enablePlugins(PackPlugin)
 
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"
 
 libraryDependencies := Seq("org.xerial" % "xerial-core" % "3.3.6")
 
diff --git a/src/sbt-test/sbt-pack/convention-noversion/build.sbt b/src/sbt-test/sbt-pack/convention-noversion/build.sbt
index 42f9551c..f01fb083 100644
--- a/src/sbt-test/sbt-pack/convention-noversion/build.sbt
+++ b/src/sbt-test/sbt-pack/convention-noversion/build.sbt
@@ -1,6 +1,6 @@
 enablePlugins(PackPlugin)
 
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"
 
 libraryDependencies := Seq("org.xerial" % "xerial-core" % "3.3.6")
 
diff --git a/src/sbt-test/sbt-pack/copy-dependencies/build.sbt b/src/sbt-test/sbt-pack/copy-dependencies/build.sbt
index 76126a63..5c624a2c 100644
--- a/src/sbt-test/sbt-pack/copy-dependencies/build.sbt
+++ b/src/sbt-test/sbt-pack/copy-dependencies/build.sbt
@@ -1,7 +1,7 @@
-ThisBuild / scalaVersion := "2.12.19"
+ThisBuild / scalaVersion := "2.12.20"
 
 val commonSettings = Seq(
-  scalaVersion               := "2.12.19",
+  scalaVersion               := "2.12.20",
   version                    := "0.1",
   crossPaths                 := false,
   packCopyDependenciesTarget := target.value / "WEB-INF/lib"
diff --git a/src/sbt-test/sbt-pack/duplicate-jars/build.sbt b/src/sbt-test/sbt-pack/duplicate-jars/build.sbt
index ed9a96e1..4da3dbb1 100644
--- a/src/sbt-test/sbt-pack/duplicate-jars/build.sbt
+++ b/src/sbt-test/sbt-pack/duplicate-jars/build.sbt
@@ -1,4 +1,4 @@
-ThisBuild / scalaVersion := "2.12.19"
+ThisBuild / scalaVersion := "2.12.20"
 val commonSettings = Defaults.coreDefaultSettings ++ Seq(
   version    := "0.1",
   crossPaths := false
diff --git a/src/sbt-test/sbt-pack/env-vars/build.sbt b/src/sbt-test/sbt-pack/env-vars/build.sbt
index 23aefc90..93ea62d4 100644
--- a/src/sbt-test/sbt-pack/env-vars/build.sbt
+++ b/src/sbt-test/sbt-pack/env-vars/build.sbt
@@ -1,7 +1,7 @@
 enablePlugins(PackPlugin)
 name := "env-vars"
 
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"
 // custom settings here
 crossPaths := false
 
diff --git a/src/sbt-test/sbt-pack/exclude-jars/build.sbt b/src/sbt-test/sbt-pack/exclude-jars/build.sbt
index 6a615534..50d8f16f 100644
--- a/src/sbt-test/sbt-pack/exclude-jars/build.sbt
+++ b/src/sbt-test/sbt-pack/exclude-jars/build.sbt
@@ -1,6 +1,6 @@
 enablePlugins(PackPlugin)
 version      := "0.1"
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"
 crossPaths   := false
 name         := "exclude-jars"
 libraryDependencies ++= Seq(
diff --git a/src/sbt-test/sbt-pack/exclude-makefile/build.sbt b/src/sbt-test/sbt-pack/exclude-makefile/build.sbt
index d9ab457f..41a6fa4b 100644
--- a/src/sbt-test/sbt-pack/exclude-makefile/build.sbt
+++ b/src/sbt-test/sbt-pack/exclude-makefile/build.sbt
@@ -1,5 +1,5 @@
 enablePlugins(PackPlugin)
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"
 crossPaths   := false
 name         := "exclude-makefile"
 version      := "0.1"
diff --git a/src/sbt-test/sbt-pack/exclude-test-config/build.sbt b/src/sbt-test/sbt-pack/exclude-test-config/build.sbt
index 723c1ccf..e2f22107 100644
--- a/src/sbt-test/sbt-pack/exclude-test-config/build.sbt
+++ b/src/sbt-test/sbt-pack/exclude-test-config/build.sbt
@@ -1,7 +1,7 @@
-ThisBuild / scalaVersion := "2.12.19"
+ThisBuild / scalaVersion := "2.12.20"
 
 val commonSettings = Seq(
-  scalaVersion := "2.12.19",
+  scalaVersion := "2.12.20",
   version      := "0.1",
   crossPaths   := false
 )
diff --git a/src/sbt-test/sbt-pack/min-project/build.sbt b/src/sbt-test/sbt-pack/min-project/build.sbt
index f860ac48..6063f89e 100644
--- a/src/sbt-test/sbt-pack/min-project/build.sbt
+++ b/src/sbt-test/sbt-pack/min-project/build.sbt
@@ -1,6 +1,6 @@
 enablePlugins(PackPlugin)
 name := "min-project"
 
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"
 // custom settings here
 crossPaths := false
diff --git a/src/sbt-test/sbt-pack/multi-module/build.sbt b/src/sbt-test/sbt-pack/multi-module/build.sbt
index e6e269d4..7d4f5e3a 100644
--- a/src/sbt-test/sbt-pack/multi-module/build.sbt
+++ b/src/sbt-test/sbt-pack/multi-module/build.sbt
@@ -1,5 +1,5 @@
 val commonSettings = Defaults.coreDefaultSettings ++ Seq(
-  scalaVersion := "2.12.19",
+  scalaVersion := "2.12.20",
   version      := "0.1",
   crossPaths   := false
 )
diff --git a/src/sbt-test/sbt-pack/nested-project/build.sbt b/src/sbt-test/sbt-pack/nested-project/build.sbt
index 268fdc72..486ca1ac 100644
--- a/src/sbt-test/sbt-pack/nested-project/build.sbt
+++ b/src/sbt-test/sbt-pack/nested-project/build.sbt
@@ -2,7 +2,7 @@ name := "nested"
 
 ThisBuild / version := "0.1"
 
-ThisBuild / scalaVersion := "2.12.19"
+ThisBuild / scalaVersion := "2.12.20"
 
 enablePlugins(PackPlugin)
 
diff --git a/src/sbt-test/sbt-pack/pack-resources/build.sbt b/src/sbt-test/sbt-pack/pack-resources/build.sbt
index f75a61dd..f826035c 100644
--- a/src/sbt-test/sbt-pack/pack-resources/build.sbt
+++ b/src/sbt-test/sbt-pack/pack-resources/build.sbt
@@ -3,7 +3,7 @@ lazy val root = Project(
   base = file(".")
 ).enablePlugins(PackPlugin)
   .settings(
-    scalaVersion := "2.12.19",
+    scalaVersion := "2.12.20",
     // Copy files from ${root}/web/... to ${root}/target/pack/web-content...
     packResourceDir += (baseDirectory.value / "web" -> "web-content"),
     // custom settings here
diff --git a/src/sbt-test/sbt-pack/space in path/build.sbt b/src/sbt-test/sbt-pack/space in path/build.sbt
index b569b0fe..35f1fb9b 100644
--- a/src/sbt-test/sbt-pack/space in path/build.sbt	
+++ b/src/sbt-test/sbt-pack/space in path/build.sbt	
@@ -1,3 +1,3 @@
 enablePlugins(PackPlugin)
 
-scalaVersion := "2.12.19"
+scalaVersion := "2.12.20"