diff --git a/.github/workflows/build-arduino.yml b/.github/workflows/build-arduino.yml
index afb48c2..983b8f2 100644
--- a/.github/workflows/build-arduino.yml
+++ b/.github/workflows/build-arduino.yml
@@ -60,6 +60,6 @@ jobs:
       uses: ArminJo/arduino-test-compile@2e04e8c
       with:
         platform-url: https://arduino.esp8266.com/stable/package_esp8266com_index.json,https://dl.espressif.com/dl/package_esp32_index.json
-        required-libraries: Adafruit NeoPixel,Time,Timezone,ArduinoJson,CoAP simple library,ESP32_https_server,esp32_https_server_compat,DHT sensor library
+        required-libraries: Adafruit NeoPixel,Time,Timezone,ArduinoJson,CoAP simple library,ESP32_https_server,esp32_https_server_compat,DHT sensor library,Ds1302
         arduino-board-fqbn: ${{ matrix.arduino-board-fqbn }}
         extra-arduino-cli-args: ${{ matrix.extra-arduino-cli-args }}
diff --git a/.github/workflows/build-platformio.yml b/.github/workflows/build-platformio.yml
index 8ea4e30..5fc8717 100644
--- a/.github/workflows/build-platformio.yml
+++ b/.github/workflows/build-platformio.yml
@@ -47,19 +47,19 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v2
 
-    - name: Cache pip
-      uses: actions/cache@v2
-      with:
-        path: ~/.cache/pip
-        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
-        restore-keys: |
-          ${{ runner.os }}-pip-
-
-    - name: Cache PlatformIO
-      uses: actions/cache@v2
-      with:
-        path: ~/.platformio
-        key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+#     - name: Cache pip
+#       uses: actions/cache@v2
+#       with:
+#         path: ~/.cache/pip
+#         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+#         restore-keys: |
+#           ${{ runner.os }}-pip-
+# 
+#     - name: Cache PlatformIO
+#       uses: actions/cache@v2
+#       with:
+#         path: ~/.platformio
+#         key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
 
     - name: Set up Python
       uses: actions/setup-python@v2
diff --git a/platformio.ini b/platformio.ini
index aad7f33..1205711 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -13,8 +13,9 @@ src_dir = .
 
 [common]
 framework = arduino
-lib_deps = iotsa
-; build_flags = -DIOTSA_WITH_HTTPS
+lib_ldf_mode = deep+
+lib_compat_mode = strict
+lib_deps = https://github.com/cwi-dis/iotsa.git#develop
 build_flags =
 ; monitor_speed = 115200
 ; monitor_port = /dev/cu.wchusbserialfd1420