diff --git a/sk.yaml b/sk.yaml
index 39fdf5c..0aa1092 100644
--- a/sk.yaml
+++ b/sk.yaml
@@ -1,8 +1,8 @@
 # Slovak holiday definitions for the Ruby Holiday gem.
 #
-# Updated: 2013-12-26.
+# Updated: 2025-12-03.
 # Sources:
-# - http://sk.wikipedia.org/wiki/Slovensk%C3%A9_%C5%A1t%C3%A1tne_sviatky
+# - https://www.vlada.gov.sk/slovensko/statne-sviatky/
 ---
 months:
   0:
@@ -37,9 +37,6 @@ months:
     regions: [sk]
     mday: 29
   9:
-  - name: Deň Ústavy Slovenskej republiky
-    regions: [sk]
-    mday: 1
   - name: Sedembolestná Panna Mária
     regions: [sk]
     mday: 15
@@ -47,9 +44,6 @@ months:
   - name: Sviatok všetkých svätých
     regions: [sk]
     mday: 1
-  - name: Deň boja za slobodu a demokraciu
-    regions: [sk]
-    mday: 17
   12:
   - name: Štedrý deň
     regions: [sk]
@@ -63,13 +57,13 @@ months:
 
 tests:
   - given:
-      date: '2013-01-01'
+      date: '2025-01-01'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Nový rok"
   - given:
-      date: '2013-01-06'
+      date: '2025-01-06'
       regions: ["sk"]
       options: ["informal"]
     expect:
@@ -87,67 +81,55 @@ tests:
     expect:
       name: "Veľkonočný pondelok"
   - given:
-      date: '2013-05-01'
+      date: '2025-05-01'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Sviatok práce"
   - given:
-      date: '2013-05-08'
+      date: '2025-05-08'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Deň víťazstva nad fašizmom"
   - given:
-      date: '2013-07-05'
+      date: '2025-07-05'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Sviatok svätého Cyrila a svätého Metoda"
   - given:
-      date: '2013-08-29'
+      date: '2025-08-29'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Výročie Slovenského národného povstania"
   - given:
-      date: '2013-09-01'
-      regions: ["sk"]
-      options: ["informal"]
-    expect:
-      name: "Deň Ústavy Slovenskej republiky"
-  - given:
-      date: '2013-09-15'
+      date: '2025-09-15'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Sedembolestná Panna Mária"
   - given:
-      date: '2013-11-01'
+      date: '2025-11-01'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Sviatok všetkých svätých"
   - given:
-      date: '2013-11-17'
-      regions: ["sk"]
-      options: ["informal"]
-    expect:
-      name: "Deň boja za slobodu a demokraciu"
-  - given:
-      date: '2013-12-24'
+      date: '2025-12-24'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "Štedrý deň"
   - given:
-      date: '2013-12-25'
+      date: '2025-12-25'
       regions: ["sk"]
       options: ["informal"]
     expect:
       name: "1. sviatok vianočný"
   - given:
-      date: '2013-12-26'
+      date: '2025-12-26'
       regions: ["sk"]
       options: ["informal"]
     expect: