diff --git a/holidays/countries/azerbaijan.py b/holidays/countries/azerbaijan.py
index 4562f3795..0c186a7fc 100644
--- a/holidays/countries/azerbaijan.py
+++ b/holidays/countries/azerbaijan.py
@@ -25,9 +25,12 @@
 
 
 class Azerbaijan(ObservedHolidayBase, InternationalHolidays, IslamicHolidays, StaticHolidays):
-    # [1] https://en.wikipedia.org/wiki/Public_holidays_in_Azerbaijan
-    # [2] https://az.wikipedia.org/wiki/Az%C9%99rbaycan%C4%B1n_d%C3%B6vl%C9%99t_bayramlar%C4%B1_v%C9%99_x%C3%BCsusi_g%C3%BCnl%C9%99ri
-    # [3] https://www.sosial.gov.az/en/prod-calendar
+    """
+    References:
+        - https://en.wikipedia.org/wiki/Public_holidays_in_Azerbaijan
+        - https://az.wikipedia.org/wiki/Az%C9%99rbaycan%C4%B1n_d%C3%B6vl%C9%99t_bayramlar%C4%B1_v%C9%99_x%C3%BCsusi_g%C3%BCnl%C9%99ri
+        - https://www.sosial.gov.az/en/prod-calendar
+    """
 
     country = "AZ"
     default_language = "az"
@@ -246,6 +249,21 @@ class AzerbaijanIslamicHolidays(_CustomIslamicHolidays):
 
 
 class AzerbaijanStaticHolidays:
+    """
+    Substituted holidays references:
+        - https://nk.gov.az/az/senedler/qerarlar/is-va-istirahat-gunlarinin-yerlarinin-dayisdirilmasi-haqqinda-5423
+        - https://nk.gov.az/az/senedler/qerarlar/is-va-istirahat-gunlarinin-yerlarinin--dayisdirilmasi-haqqinda-5982
+        - https://nk.gov.az/az/senedler/qerarlar/is-va-istirahat-gunlarinin-yerlarinin-dayisdirilmasi-haqqinda-6488
+        - https://nk.gov.az/az/senedler/qerarlar/is-ve-istirahet-gunlerinin-yerlerinin-deyisdirilme-7047
+        - https://nk.gov.az/az/senedler/qerarlar/is-ve-istirahet-gunlerinin-yerlerinin-deyisdirilme-7466
+        - https://nk.gov.az/az/senedler/qerarlar/is-ve-istirahet-gunlerinin-yerlerinin-deyisdirilme-7576
+        - https://nk.gov.az/az/senedler/qerarlar/is-ve-istirahet-gunlerinin-yerlerinin-deyisdirilme-7843
+        - https://nk.gov.az/az/senedler/qerarlar/is-ve-istirahet-gunlerinin-yerlerinin-deyisdirilme-8332
+        - https://nk.gov.az/az/senedler/qerarlar/is-ve-istirahet-gunlerinin-yerlerinin-deyisdirilme-8449
+    Special holidays references:
+        - https://www.msk.gov.az/en/elections/pages/municipal-elections/belediyye-29-01-2025
+    """
+
     eid_al_adha = tr("Qurban bayrami")
     # Substituted date format.
     substituted_date_format = tr("%d.%m.%Y")
@@ -255,6 +273,9 @@ class AzerbaijanStaticHolidays:
     # Presidential elections.
     presidential_elections = tr("Prezidenti seçkiləri")
 
+    # Municipal elections.
+    municipal_elections = tr("Bələdiyyə seçkiləri")
+
     special_public_holidays = {
         2011: (AUG, 29, AUG, 27),
         2013: (
@@ -266,8 +287,7 @@ class AzerbaijanStaticHolidays:
             (JAN, 6, DEC, 29, 2013),
         ),
         2018: (APR, 11, presidential_elections),
-        # Municipal elections.
-        2019: (DEC, 27, tr("Bələdiyyə seçkiləri")),
+        2019: (DEC, 27, municipal_elections),
         2020: (
             (MAR, 27, MAR, 29),
             (MAY, 27, MAY, 30),
@@ -295,6 +315,11 @@ class AzerbaijanStaticHolidays:
             (APR, 12, APR, 6),
             (NOV, 12, NOV, 16),
             (NOV, 13, NOV, 23),
+            (DEC, 30, DEC, 28),
+        ),
+        2025: (
+            (JAN, 3, DEC, 29, 2024),
+            (JAN, 29, municipal_elections),
         ),
     }
 
diff --git a/snapshots/countries/AZ_COMMON.json b/snapshots/countries/AZ_COMMON.json
index 95d1045d5..c56721091 100644
--- a/snapshots/countries/AZ_COMMON.json
+++ b/snapshots/countries/AZ_COMMON.json
@@ -732,10 +732,13 @@
     "2024-11-12": "Constitution Day; Day off (substituted from 11/16/2024)",
     "2024-11-13": "Day off (substituted from 11/23/2024)",
     "2024-11-17": "National Revival Day",
+    "2024-12-30": "Day off (substituted from 12/28/2024)",
     "2024-12-31": "International Azerbaijanis Solidarity Day",
     "2025-01-01": "New Year's Day",
     "2025-01-02": "New Year's Day",
+    "2025-01-03": "Day off (substituted from 12/29/2024)",
     "2025-01-20": "Martyrs' Day",
+    "2025-01-29": "Municipal elections",
     "2025-03-08": "Women's Day",
     "2025-03-10": "Women's Day (observed)",
     "2025-03-20": "Spring Festival",
diff --git a/tests/countries/test_azerbaijan.py b/tests/countries/test_azerbaijan.py
index f4a2e8072..462b1359e 100644
--- a/tests/countries/test_azerbaijan.py
+++ b/tests/countries/test_azerbaijan.py
@@ -34,6 +34,7 @@ def test_special_holidays(self):
             "2018-04-11",
             "2019-12-27",
             "2024-02-07",
+            "2025-01-29",
             "2072-01-05",
         )
 
@@ -61,6 +62,8 @@ def test_substituted_holidays(self):
             "2024-04-12",
             "2024-11-12",
             "2024-11-13",
+            "2024-12-30",
+            "2025-01-03",
         )
 
     def test_new_years_day(self):