diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6b3f2493..856adaa38 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
         with:
           fetch-depth: 0
       - uses: olafurpg/setup-scala@v13
-      - run: sbt '++2.12.15 docs/mdoc'
+      - run: sbt '++2.12.16 docs/mdoc'
   test-windows:
     name: "Windows"
     runs-on: windows-latest
@@ -41,7 +41,7 @@ jobs:
         command:
           # Test legacy Scala versions, where reporting API changed
           - "'++2.12.12 test'"
-          - "'++2.12.15 test'"
+          - "'++2.12.16 test'"
           - "'++2.13.8 test'"
           - "'++3.1.2 test'"
           - "scripted"
diff --git a/.github/workflows/mdoc.yml b/.github/workflows/mdoc.yml
index 4dfcc70c4..a5c2f5741 100644
--- a/.github/workflows/mdoc.yml
+++ b/.github/workflows/mdoc.yml
@@ -12,7 +12,7 @@ jobs:
           fetch-depth: 0
       - uses: olafurpg/setup-scala@v13
       - uses: olafurpg/setup-gpg@v3
-      - run: sbt '++2.12.15 docs/docusaurusPublishGhpages'
+      - run: sbt '++2.12.16 docs/docusaurusPublishGhpages'
         env:
           GIT_DEPLOY_KEY: ${{ secrets.GIT_DEPLOY_KEY }}
       - name: Check git diff
diff --git a/build.sbt b/build.sbt
index 1a50032f6..f1d6a0933 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 import scala.collection.mutable
 
-def scala212 = "2.12.15"
+def scala212 = "2.12.16"
 def scala213 = "2.13.8"
 def scala3 = "3.1.2"
 def scala2Versions = List(scala212, scala213)
diff --git a/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/build.sbt b/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/build.sbt
index cddcd46df..b9c041d41 100644
--- a/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/build.sbt
+++ b/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/build.sbt
@@ -1,5 +1,5 @@
-ThisBuild / scalaVersion := "2.12.15"
-ThisBuild / crossScalaVersions := List("2.12.15", "2.13.8", "3.0.1")
+ThisBuild / scalaVersion := "2.12.16"
+ThisBuild / crossScalaVersions := List("2.12.16", "2.13.8", "3.0.1")
 
 enablePlugins(MdocPlugin)
 mdocJS := Some(jsapp)
diff --git a/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/test b/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/test
index 9ecab8912..8f5c90d1b 100644
--- a/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/test
+++ b/mdoc-sbt/src/sbt-test/sbt-mdoc/basic/test
@@ -1,4 +1,4 @@
-> ++2.12.15 mdoc
+> ++2.12.16 mdoc
 > check
 > ++2.13.8 mdoc
 > check
diff --git a/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/build.sbt b/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/build.sbt
index cddcd46df..b9c041d41 100644
--- a/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/build.sbt
+++ b/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/build.sbt
@@ -1,5 +1,5 @@
-ThisBuild / scalaVersion := "2.12.15"
-ThisBuild / crossScalaVersions := List("2.12.15", "2.13.8", "3.0.1")
+ThisBuild / scalaVersion := "2.12.16"
+ThisBuild / crossScalaVersions := List("2.12.16", "2.13.8", "3.0.1")
 
 enablePlugins(MdocPlugin)
 mdocJS := Some(jsapp)
diff --git a/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/test b/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/test
index 9ecab8912..8f5c90d1b 100644
--- a/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/test
+++ b/mdoc-sbt/src/sbt-test/sbt-mdoc/scalajs-1.7/test
@@ -1,4 +1,4 @@
-> ++2.12.15 mdoc
+> ++2.12.16 mdoc
 > check
 > ++2.13.8 mdoc
 > check