diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7a33397..9cf8e03 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         java: [8, 11, 17, 21]
-        scala: [2.11.x, 2.12.x, 2.13.x, 3.x]
+        scala: [2.12.x, 2.13.x, 3.x]
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
diff --git a/build.sbt b/build.sbt
index 76226a9..1782312 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 lazy val scalaTestVersion = "3.2.19"
 
-ThisBuild / crossScalaVersions := Seq("3.3.6", "2.13.16", "2.12.20", "2.11.12")
+ThisBuild / crossScalaVersions := Seq("3.3.6", "2.13.16", "2.12.20")
 ThisBuild / scalaVersion := crossScalaVersions.value.head
 
 // We use <epoch>.<major>.<minor> like 99% of Scala libraries.