diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d359b93e..2607e94f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,7 +42,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        scala: [2.13, 3]
+        scala: [3.9.0, 3.3.8]
         java: [temurin@11]
         project: [rootJS, rootJVM, rootNative]
     runs-on: ${{ matrix.os }}
@@ -151,62 +151,62 @@ jobs:
         if: matrix.java == 'temurin@11' && steps.setup-java-temurin-11.outputs.cache-hit == 'false'
         run: sbt +update
 
-      - 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
@@ -281,7 +281,7 @@ jobs:
       - name: Submit Dependencies
         uses: scalacenter/sbt-dependency-submission@v2
         with:
-          modules-ignore: grackle-demo_2.13 grackle-demo_3 benchmarks_2.13 benchmarks_3 rootjs_2.13 rootjs_3 docs_2.13 docs_3 buildinfo_native0.5_2.13 buildinfo_native0.5_3 buildinfo_sjs1_2.13 buildinfo_sjs1_3 profile_2.13 profile_3 rootjvm_2.13 rootjvm_3 rootnative_2.13 rootnative_3 buildinfo_2.13 buildinfo_3 repodocs_2.13 repodocs_3
+          modules-ignore: grackle-demo_3 grackle-demo_3 benchmarks_3 benchmarks_3 rootjs_3 rootjs_3 docs_3 docs_3 buildinfo_native0.5_3 buildinfo_native0.5_3 buildinfo_sjs1_3 buildinfo_sjs1_3 profile_3 profile_3 rootjvm_3 rootjvm_3 rootnative_3 rootnative_3 buildinfo_3 buildinfo_3 repodocs_3 repodocs_3
           configs-ignore: test scala-tool scala-doc-tool test-internal
 
   coverage:
diff --git a/build.sbt b/build.sbt
index 6088154c..272115e2 100644
--- a/build.sbt
+++ b/build.sbt
@@ -33,7 +33,7 @@ val shapeless3Version = "3.6.0"
 val sourcePosVersion = "1.2.0"
 val typenameVersion = "1.1.2"
 
-val Scala2 = "2.13.18"
+val Scala2 = "3.9.0"
 val Scala3 = "3.3.8"
 
 ThisBuild / scalaVersion := Scala2