diff --git a/_posts/2019-11-06-di-guidance-android.md b/_posts/2019-11-06-di-guidance-android.md
index a756c53..d5ccd38 100755
--- a/_posts/2019-11-06-di-guidance-android.md
+++ b/_posts/2019-11-06-di-guidance-android.md
@@ -1,7 +1,7 @@
 ---
 layout: post
 current: post
-cover: assets/images/2020-03-30-dagger-cheat-sheets.png
+cover: assets/images/2020-03-30-dagger-cheat-sheets.webp
 navigation: True
 title: Dependency Injection guidance on Android — ADS 2019
 date: 2019-11-06 00:00:00
diff --git a/_posts/2020-12-16-simplifying-apis-coroutines.md b/_posts/2020-12-16-simplifying-apis-coroutines.md
index 0c2d9cc..4b6ad51 100755
--- a/_posts/2020-12-16-simplifying-apis-coroutines.md
+++ b/_posts/2020-12-16-simplifying-apis-coroutines.md
@@ -1,7 +1,7 @@
 ---
 layout: post
 current: post
-cover: assets/images/2019-03-24-suspend-modifier.png
+cover: assets/images/2019-03-24-suspend-modifier.webp
 navigation: True
 title: Simplifying APIs with coroutines and Flow
 date: 2020-12-16 00:00:00