diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aaa99184..b8c98a76 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -104,7 +104,6 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.10]
         java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
@@ -173,4 +172,4 @@ jobs:
           (echo "$PGP_PASSPHRASE"; echo; echo) | gpg --command-fd 0 --pinentry-mode loopback --change-passphrase $(gpg --list-secret-keys --with-colons 2> /dev/null | grep '^sec:' | cut --delimiter ':' --fields 5 | tail -n 1)
 
       - name: Publish
-        run: sbt '++ ${{ matrix.scala }}' tlCiRelease
+        run: sbt tlCiRelease
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 3ff5a556..28ec82eb 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,4 +1,4 @@
-addSbtPlugin("org.typelevel"             % "sbt-typelevel-ci-release" % "0.4.20")
+addSbtPlugin("org.typelevel"             % "sbt-typelevel-ci-release" % "0.4.21")
 addSbtPlugin("io.spray"                  % "sbt-revolver"             % "0.10.0")
 addSbtPlugin("com.typesafe.sbt"          % "sbt-site"                 % "1.4.1")
 addSbtPlugin("com.typesafe.sbt"          % "sbt-ghpages"              % "0.6.3")