diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 055d74b..947f02a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -44,6 +44,14 @@ jobs:
       - uses: SwiftyLab/setup-swift@latest
         with:
           swift-version: ${{ matrix.swift }}
+      - name: Cache SwiftPM build products
+        uses: actions/cache@v6
+        with:
+          path: |
+            .build
+            ~/.cache/org.swift.swiftpm
+            ~/Library/Caches/org.swift.swiftpm
+          key: swiftpm-test-${{ matrix.os }}-swift${{ matrix.swift }}-${{ hashFiles('Package.resolved') }}
       - name: Build
         run: swift build -v
       - name: Test
@@ -56,6 +64,14 @@ jobs:
       - uses: SwiftyLab/setup-swift@latest
         with:
           swift-version: "6.3"
+      - name: Cache SwiftPM build products
+        uses: actions/cache@v6
+        with:
+          path: |
+            .build
+            ~/.cache/org.swift.swiftpm
+            ~/Library/Caches/org.swift.swiftpm
+          key: swiftpm-docs-macos-latest-swift6.3-${{ hashFiles('Package.resolved') }}
       - name: Build documentation
         run: |
           swift package \
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index c3165ff..c0dea87 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -23,6 +23,14 @@ jobs:
       - uses: SwiftyLab/setup-swift@latest
         with:
           swift-version: "6.3"
+      - name: Cache SwiftPM build products
+        uses: actions/cache@v6
+        with:
+          path: |
+            .build
+            ~/.cache/org.swift.swiftpm
+            ~/Library/Caches/org.swift.swiftpm
+          key: swiftpm-docs-macos-latest-swift6.3-${{ hashFiles('Package.resolved') }}
       - name: Build
         run: |
           swift package \
diff --git a/.github/workflows/periphery.yml b/.github/workflows/periphery.yml
index 0a7bbba..438db5f 100644
--- a/.github/workflows/periphery.yml
+++ b/.github/workflows/periphery.yml
@@ -8,6 +8,17 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v6
+      - name: Record Swift version
+        id: swift
+        run: echo "version=$(swift --version | head -n1 | sed 's/[^[:alnum:].]/-/g')" >> "$GITHUB_OUTPUT"
+      - name: Cache SwiftPM build products
+        uses: actions/cache@v6
+        with:
+          path: |
+            .build
+            ~/.cache/org.swift.swiftpm
+            ~/Library/Caches/org.swift.swiftpm
+          key: swiftpm-periphery-macos-latest-${{ steps.swift.outputs.version }}-${{ hashFiles('Package.resolved') }}
       - name: Install Periphery
         run: brew install peripheryapp/periphery/periphery
       - name: Run Periphery