diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 2151c5caa39..1cac07a1474 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -36,9 +36,28 @@ jobs:
             -   name: Setup Gradle
                 uses: gradle/actions/setup-gradle@3f5f9adaf7d9fecd50b5935e54106014257a94e6 # v6.4.0
 
+            -   name: Read the Robolectric version
+                id: robolectric
+                run: echo "version=$(grep -oP 'org\.robolectric:robolectric:\K[0-9.]+' app/build.gradle.kts)" >> "$GITHUB_OUTPUT"
+
+            -   name: Restore the Robolectric Android SDK jars
+                id: robolectric-cache
+                uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+                with:
+                    path: ~/.m2/repository/org/robolectric
+                    key: robolectric-sdks-${{ runner.os }}-${{ steps.robolectric.outputs.version }}
+
             -   name: Run unit tests with coverage
                 run: ./gradlew --no-daemon testGplayDebugUnit
 
+            # Saved even when the suite fails, so a red run still leaves the jars behind.
+            -   name: Save the Robolectric Android SDK jars
+                if: ${{ always() && steps.robolectric-cache.outputs.cache-hit != 'true' }}
+                uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+                with:
+                    path: ~/.m2/repository/org/robolectric
+                    key: robolectric-sdks-${{ runner.os }}-${{ steps.robolectric.outputs.version }}
+
             -   name: Upload test artifacts
                 if: ${{ failure() }}
                 uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2