diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 84ce2c9..637b43e 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -42,9 +42,13 @@ jobs:
           npm ci --include=optional
           SHARP_ARM64_VERSION="$(node -p "require('./package-lock.json').packages['node_modules/@img/sharp-linux-arm64'].version")"
           LIBVIPS_ARM64_VERSION="$(node -p "require('./package-lock.json').packages['node_modules/@img/sharp-libvips-linux-arm64'].version")"
-          npm install --no-save --package-lock=false \
-            "@img/sharp-linux-arm64@${SHARP_ARM64_VERSION}" \
-            "@img/sharp-libvips-linux-arm64@${LIBVIPS_ARM64_VERSION}"
+          if [[ ! -d node_modules/@img/sharp-linux-arm64 || ! -d node_modules/@img/sharp-libvips-linux-arm64 ]]; then
+            npm install --no-save --package-lock=false \
+              "@img/sharp-linux-arm64@${SHARP_ARM64_VERSION}" \
+              "@img/sharp-libvips-linux-arm64@${LIBVIPS_ARM64_VERSION}"
+          else
+            echo "Locked Sharp ARM64 optional packages are already installed"
+          fi
           node -e "import('sharp').then((sharp) => sharp.default({ create: { width: 1, height: 1, channels: 4, background: '#000' } }).png().toBuffer())"
 
       - name: Check patch formatting