diff --git a/project/src/main/scala/Build.scala b/project/src/main/scala/Build.scala
index 351dc205c9..42243206de 100644
--- a/project/src/main/scala/Build.scala
+++ b/project/src/main/scala/Build.scala
@@ -49,7 +49,7 @@ object Build {
     Project(s"sample-${name}", file(s"modules/sample-${name}"))
       .settings(commonSettings)
       .settings(codegenSettings)
-      .settings(libraryDependencies += "org.scala-lang.modules" %% "scala-collection-compat" % "2.10.0")
+      .settings(libraryDependencies += "org.scala-lang.modules" %% "scala-collection-compat" % "2.11.0")
       .settings(
         libraryDependencies ++= extraLibraryDependencies,
         Compile / unmanagedSourceDirectories += baseDirectory.value / "target" / "generated",
diff --git a/project/src/main/scala/modules/core.scala b/project/src/main/scala/modules/core.scala
index 3920a52acf..3339468384 100644
--- a/project/src/main/scala/modules/core.scala
+++ b/project/src/main/scala/modules/core.scala
@@ -14,7 +14,7 @@ object core {
         libraryDependencies ++= Seq(
           "io.swagger.parser.v3"        % "swagger-parser"                % "2.1.16",
         ) ++ Seq(
-          "org.scala-lang.modules"      %% "scala-collection-compat"      % "2.10.0",
+          "org.scala-lang.modules"      %% "scala-collection-compat"      % "2.11.0",
           "org.tpolecat"                %% "atto-core"                    % "0.9.5",
           "org.typelevel"               %% "cats-core"                    % catsVersion,
           "org.typelevel"               %% "cats-kernel"                  % catsVersion,