diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a5b3603..7447b53 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,6 +30,7 @@ jobs:
           - 3.4.2
           - 3.4.1
           - 3.4.0
+          - 3.3.4
           - 3.3.3
           - 3.3.2
           - 3.3.1
@@ -165,6 +166,16 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
+      - name: Download target directories (3.3.4)
+        uses: actions/download-artifact@v4
+        with:
+          name: target-${{ matrix.os }}-3.3.4-${{ matrix.java }}
+
+      - name: Inflate target directories (3.3.4)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
       - name: Download target directories (3.3.3)
         uses: actions/download-artifact@v4
         with:
diff --git a/build.sbt b/build.sbt
index ed785e9..a639d86 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,7 +4,7 @@ inThisBuild(Seq(
   crossScalaVersions := Seq(
     "3.5.1", "3.5.0",
     "3.4.3", "3.4.2", "3.4.1", "3.4.0",
-    "3.3.3", "3.3.2", "3.3.1", "3.3.0",
+    "3.3.4", "3.3.3", "3.3.2", "3.3.1", "3.3.0",
     "3.2.2", "3.2.1",
     "2.13.10", "2.13.11", "2.13.12", "2.13.13", "2.13.14",
     "2.12.17", "2.12.18", "2.12.19"