diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7fef3be6..8a947d5d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        scala: [2.12, 2.13, 3]
+        scala: [2.12.21, 3.9.0, 3.3.8]
         java: [temurin@11]
         project: [rootJS, rootJVM, rootNative]
     runs-on: ${{ matrix.os }}
@@ -127,92 +127,92 @@ jobs:
         if: matrix.java == 'temurin@11' && steps.setup-java-temurin-11.outputs.cache-hit == 'false'
         run: sbt +update
 
-      - name: Download target directories (2.12, rootJS)
+      - name: Download target directories (2.12.21, rootJS)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12-rootJS
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.21-rootJS
 
-      - name: Inflate target directories (2.12, rootJS)
+      - name: Inflate target directories (2.12.21, rootJS)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.12, rootJVM)
+      - name: Download target directories (2.12.21, rootJVM)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12-rootJVM
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.21-rootJVM
 
-      - name: Inflate target directories (2.12, rootJVM)
+      - name: Inflate target directories (2.12.21, rootJVM)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.12, rootNative)
+      - name: Download target directories (2.12.21, rootNative)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12-rootNative
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.21-rootNative
 
-      - name: Inflate target directories (2.12, rootNative)
+      - name: Inflate target directories (2.12.21, rootNative)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.13, rootJS)
+      - name: Download target directories (3.9.0, rootJS)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootJS
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.9.0-rootJS
 
-      - name: Inflate target directories (2.13, rootJS)
+      - name: Inflate target directories (3.9.0, rootJS)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.13, rootJVM)
+      - name: Download target directories (3.9.0, rootJVM)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootJVM
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.9.0-rootJVM
 
-      - name: Inflate target directories (2.13, rootJVM)
+      - name: Inflate target directories (3.9.0, rootJVM)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.13, rootNative)
+      - name: Download target directories (3.9.0, rootNative)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootNative
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.9.0-rootNative
 
-      - name: Inflate target directories (2.13, rootNative)
+      - name: Inflate target directories (3.9.0, rootNative)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (3, rootJS)
+      - name: Download target directories (3.3.8, rootJS)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootJS
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.3.8-rootJS
 
-      - name: Inflate target directories (3, rootJS)
+      - name: Inflate target directories (3.3.8, rootJS)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (3, rootJVM)
+      - name: Download target directories (3.3.8, rootJVM)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootJVM
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.3.8-rootJVM
 
-      - name: Inflate target directories (3, rootJVM)
+      - name: Inflate target directories (3.3.8, rootJVM)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (3, rootNative)
+      - name: Download target directories (3.3.8, rootNative)
         uses: actions/download-artifact@v6
         with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootNative
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.3.8-rootNative
 
-      - name: Inflate target directories (3, rootNative)
+      - name: Inflate target directories (3.3.8, rootNative)
         run: |
           tar xf targets.tar
           rm targets.tar
@@ -274,7 +274,7 @@ jobs:
       - name: Submit Dependencies
         uses: scalacenter/sbt-dependency-submission@v2
         with:
-          modules-ignore: rootjs_2.12 rootjs_2.13 rootjs_3 docs-output_2.12 docs-output_2.13 docs-output_3 weaver-docs_2.12 weaver-docs_2.13 weaver-docs_3 rootjvm_2.12 rootjvm_2.13 rootjvm_3 rootnative_2.12 rootnative_2.13 rootnative_3
+          modules-ignore: rootjs_2.12 rootjs_3 rootjs_3 docs-output_2.12 docs-output_3 docs-output_3 weaver-docs_2.12 weaver-docs_3 weaver-docs_3 rootjvm_2.12 rootjvm_3 rootjvm_3 rootnative_2.12 rootnative_3 rootnative_3
           configs-ignore: test scala-tool scala-doc-tool test-internal
 
   validate-steward:
diff --git a/build.sbt b/build.sbt
index 18fec485..96a90649 100644
--- a/build.sbt
+++ b/build.sbt
@@ -33,7 +33,7 @@ ThisBuild / tlCiReleaseBranches := List("main")
 ThisBuild / githubWorkflowJavaVersions := Seq(JavaSpec.temurin("11"))
 
 val scala212 = "2.12.21"
-val scala213 = "2.13.18"
+val scala213 = "3.9.0"
 ThisBuild / crossScalaVersions := Seq(scala212, scala213, "3.3.8")
 ThisBuild / scalaVersion       := scala213 // the default Scala