diff --git a/metadata/com.flxrs.dankchat.yml b/metadata/com.flxrs.dankchat.yml
index 00d51c1aca..19f947d678 100644
--- a/metadata/com.flxrs.dankchat.yml
+++ b/metadata/com.flxrs.dankchat.yml
@@ -386,7 +386,7 @@ Builds:
     subdir: app
     gradle:
       - yes
-    ndk: r21d
+    ndk: r21e
 
   - versionName: 2.6.1
     versionCode: 181
@@ -394,7 +394,7 @@ Builds:
     subdir: app
     gradle:
       - yes
-    ndk: r21d
+    ndk: r21e
 
 AutoUpdateMode: Version v%v
 UpdateCheckMode: Tags
diff --git a/metadata/com.tailscale.ipn.yml b/metadata/com.tailscale.ipn.yml
index 5b5c476fb4..59d08e6cac 100644
--- a/metadata/com.tailscale.ipn.yml
+++ b/metadata/com.tailscale.ipn.yml
@@ -187,7 +187,7 @@ Builds:
       - export ANDROID_SDK_ROOT=$$SDK$$
       - export ANDROID_NDK_ROOT=$$NDK$$
       - PATH=$(pwd)/go/bin:$PATH make -C .. release_aar
-    ndk: r21d
+    ndk: r21e
 
 AutoUpdateMode: Version v%v
 UpdateCheckMode: Tags
diff --git a/metadata/de.corona.tracing.yml b/metadata/de.corona.tracing.yml
index 2dd739de34..033de757fa 100644
--- a/metadata/de.corona.tracing.yml
+++ b/metadata/de.corona.tracing.yml
@@ -143,7 +143,7 @@ Builds:
     subdir: Corona-Warn-App
     gradle:
       - device
-    prebuild: sed -i -e 's/21.2.6472646/21.3.6528147/' build.gradle
+    prebuild: sed -i -e 's/21.2.6472646/21.4.7075529/' build.gradle
     scanignore:
       - Corona-Warn-App/src/main/assets/default_app_config_android.bin
     scandelete:
diff --git a/metadata/eu.sum7.conversations.yml b/metadata/eu.sum7.conversations.yml
index 1d775883e6..a705133d49 100644
--- a/metadata/eu.sum7.conversations.yml
+++ b/metadata/eu.sum7.conversations.yml
@@ -517,7 +517,7 @@ Builds:
         s/eu.siacs./eu.sum7./" "{}" \;
       - find -type f -name "*.xml"  -exec sed -i "/eu.siacs.conversations.axolotl/!
         s/eu.siacs./eu.sum7./" "{}" \;
-    ndk: r21d
+    ndk: r21e
 
 MaintainerNotes: |-
     We rename package on fork to work more smoothly (sharing button) - https://github.com/kriztan/Pix-Art-Messenger/issues/160,
diff --git a/metadata/me.thanel.dank.yml b/metadata/me.thanel.dank.yml
index 94b2d40393..8c598df59b 100644
--- a/metadata/me.thanel.dank.yml
+++ b/metadata/me.thanel.dank.yml
@@ -36,6 +36,7 @@ Builds:
     subdir: app
     gradle:
       - yes
+    prebuild: sed -i 's/21.3.6528147/21.4.7075529/' build.gradle
     ndk: r21e
 
 AutoUpdateMode: Version %v
diff --git a/metadata/ru.playsoftware.j2meloader.yml b/metadata/ru.playsoftware.j2meloader.yml
index 55d1576856..ddf5c41698 100644
--- a/metadata/ru.playsoftware.j2meloader.yml
+++ b/metadata/ru.playsoftware.j2meloader.yml
@@ -364,7 +364,7 @@ Builds:
     prebuild: sed -i -e 's/5.2-/5.1-/' ../gradle/wrapper/gradle-wrapper.properties
     scanignore:
       - app/src/main/java/javax/microedition/shell/AppClassLoader.java
-    ndk: r21d
+    ndk: r21e
 
 MaintainerNotes: 'The class loader is needed for the main function of the app: load
     JARs.'