diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4e12fa283..a3a8e79dc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -434,7 +434,7 @@ jobs:
 
   build-linux-online:
     # Run pytest with "live" checks
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
       with:
diff --git a/requirements.txt b/requirements.txt
index d69189213..62aa2a80a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,6 +15,7 @@ humanize==4.12.2
 cachetools==5.5.2
 requests==2.32.3
 urllib3==2.4.0
+certifi==2025.01.31
 jsonschema==4.23.0
 TA-Lib==0.4.38
 technical==1.5.0
diff --git a/tests/exchange_online/conftest.py b/tests/exchange_online/conftest.py
index 2edc8b322..f7cf49aa4 100644
--- a/tests/exchange_online/conftest.py
+++ b/tests/exchange_online/conftest.py
@@ -408,14 +408,13 @@ EXCHANGES = {
         "candle_count": 200,
         "orderbook_max_entries": 50,
     },
-    # TODO: verify why htx is not working in CI.
-    # "htx": {
-    #     "pair": "ETH/BTC",
-    #     "stake_currency": "BTC",
-    #     "hasQuoteVolume": True,
-    #     "timeframe": "1h",
-    #     "candle_count": 1000,
-    # },
+    "htx": {
+        "pair": "ETH/BTC",
+        "stake_currency": "BTC",
+        "hasQuoteVolume": True,
+        "timeframe": "1h",
+        "candle_count": 1000,
+    },
     "bitvavo": {
         "pair": "BTC/EUR",
         "stake_currency": "EUR",