diff --git a/.github/workflows/scala.yml b/.github/workflows/scala.yml
index ec9fc7c7..6abcf88b 100644
--- a/.github/workflows/scala.yml
+++ b/.github/workflows/scala.yml
@@ -13,8 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        # FIXME Use stable scala version
-        scala: [2.13.12, 3.3.0]
+        scala: [2.12.19, 2.13.12, 3.3.0]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/build.sbt b/build.sbt
index 1b87c778..5a10ac9d 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,3 +1,4 @@
+lazy val scala212 = "2.12.19"
 lazy val scala213 = "2.13.12"
 /* FIXME
 Return to use a stable version when 'scala.quoted.Quotes.reflectModuleSymbol.newClass'
@@ -66,7 +67,7 @@ def crossScalaSettings = {
     }
 
   Seq(
-    crossScalaVersions := Seq(scala213, scala3),
+    crossScalaVersions := Seq(scala212, scala213, scala3),
     Compile / unmanagedSourceDirectories ++= addDirsByScalaVersion("src/main").value,
     Test / unmanagedSourceDirectories ++= addDirsByScalaVersion("src/test").value
   )