diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 70b9f14cad..1ad9fb670c 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        scala: [2.12.13, 2.13.1]
+        scala: [2.12.12, 2.13.1]
         java: ['1.8', '1.11']
     runs-on: ubuntu-latest
     steps:
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 8978f46f3a..7b7799b8df 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -10,6 +10,9 @@ Unreleased
 Runtime Behavior Changes
 ~~~~~~~~~~~~~~~~~~~~~~~~
 
+* util: Revert to scala version 2.12.12 due to https://github.com/scoverage/sbt-scoverage/issues/319
+  ``PHAB_ID=D635917``
+
 * util: Bump scala version to 2.12.13 ``PHAB_ID=D632567``
 
 Breaking API Changes
diff --git a/build.sbt b/build.sbt
index 90a2df21a3..93dd3044fa 100644
--- a/build.sbt
+++ b/build.sbt
@@ -78,8 +78,8 @@ def jdk11GcJavaOptions: Seq[String] = {
 }
 
 val defaultProjectSettings = Seq(
-  scalaVersion := "2.12.13",
-  crossScalaVersions := Seq("2.12.13", "2.13.1")
+  scalaVersion := "2.12.12",
+  crossScalaVersions := Seq("2.12.12", "2.13.1")
 )
 
 val baseSettings = Seq(