diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 41a67a076..444ec2bb0 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -63,7 +63,7 @@ jobs:
         with:
           jvm: temurin:1.11.0
 
-      - name: Compile all code with fatal warnings for Java 11, Scala 2.12 and Scala 2.13
+      - name: Compile all code with fatal warnings for Java 11, Scala 2.13
         # Run locally with: sbt 'clean ; +Test/compile ; +It/compile'
         run: sbt "; Test/compile; It/compile"
 
diff --git a/.github/workflows/h2-test.yml b/.github/workflows/h2-test.yml
index cd8d956b7..cebef167e 100644
--- a/.github/workflows/h2-test.yml
+++ b/.github/workflows/h2-test.yml
@@ -20,10 +20,6 @@ jobs:
       matrix:
         include:
           # leaving out some combinations (note that `checks.yml` doesn't run H2 test)
-          - { scalaVersion: "2.12", jdkVersion: "1.8.0",  jvmName: "temurin:1.8.0",  extraOpts: '' }
-          - { scalaVersion: "2.12", jdkVersion: "1.11.0", jvmName: "temurin:1.11.0", extraOpts: '-J-XX:+UnlockExperimentalVMOptions -J-XX:+UseJVMCICompiler' }
-          # { scalaVersion: "2.12", jdkVersion: "1.17.0", jvmName: "temurin:1.17.0", extraOpts: '' }
-
           - { scalaVersion: "2.13", jdkVersion: "1.8.0",  jvmName: "temurin:1.8.0",  extraOpts: '' }
           # { scalaVersion: "2.13", jdkVersion: "1.11.0", jvmName: "temurin:1.11.0", extraOpts: '-J-XX:+UnlockExperimentalVMOptions -J-XX:+UseJVMCICompiler' }
           - { scalaVersion: "2.13", jdkVersion: "1.17.0", jvmName: "temurin:1.17.0", extraOpts: '' }
diff --git a/.gitignore b/.gitignore
index f2760765c..d612d0c26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@ target
 .bloop
 .metals
 metals.sbt
+.DS_Store
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 4ae757470..aed83daa0 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -2,10 +2,9 @@ import sbt._
 
 object Dependencies {
 
-  val Scala212 = "2.12.18"
   val Scala213 = "2.13.12"
 
-  val ScalaVersions = Seq(Scala213, Scala212)
+  val ScalaVersions = Seq(Scala213)
 
   val AkkaVersion = "2.7.0"
   val AkkaBinaryVersion = AkkaVersion.take(3)