diff --git a/metadata/us.spotco.fennec_dos.yml b/metadata/us.spotco.fennec_dos.yml
index 36b24500a5..3438786c5d 100644
--- a/metadata/us.spotco.fennec_dos.yml
+++ b/metadata/us.spotco.fennec_dos.yml
@@ -106,6 +106,50 @@ Builds:
     build: $$MullBuild$$/build.sh
     ndk: r21e
 
+  - versionName: 91.1.0
+    versionCode: 2911000
+    commit: v91.1.0
+    timeout: 14400
+    sudo:
+      - apt-get update || apt-get update
+      - apt-get install -y g++ python-setuptools tcl gyp ninja-build libffi-dev libsqlite3-dev
+    output: app/build/outputs/apk/release/app-*-release-unsigned.apk
+    srclibs:
+      - MozAndroidComponents@v91.0.12
+      - MozAndroidComponentsAS@v75.0.0
+      - MozAppServices@v79.0.0
+      - MullBuild@v91.1.0
+      - MozFennec@FIREFOX_91_0_RELEASE
+      - MozGlean@v39.0.3
+      - MozGleanAS@v35.0.0
+      - pyenv@v2.0.4
+      - rustup@1.24.3
+    prebuild: $$MullBuild$$/prebuild.sh $$VERSION$$ $$VERCODE$$
+    build: $$MullBuild$$/build.sh
+    ndk: r21e
+
+  - versionName: 91.1.0
+    versionCode: 2911020
+    commit: v91.1.0
+    timeout: 14400
+    sudo:
+      - apt-get update || apt-get update
+      - apt-get install -y g++ python-setuptools tcl gyp ninja-build libffi-dev libsqlite3-dev
+    output: app/build/outputs/apk/release/app-*-release-unsigned.apk
+    srclibs:
+      - MozAndroidComponents@v91.0.12
+      - MozAndroidComponentsAS@v75.0.0
+      - MozAppServices@v79.0.0
+      - MullBuild@v91.1.0
+      - MozFennec@FIREFOX_91_0_RELEASE
+      - MozGlean@v39.0.3
+      - MozGleanAS@v35.0.0
+      - pyenv@v2.0.4
+      - rustup@1.24.3
+    prebuild: $$MullBuild$$/prebuild.sh $$VERSION$$ $$VERCODE$$
+    build: $$MullBuild$$/build.sh
+    ndk: r21e
+
 MaintainerNotes: |4-
 
     Version code scheme:
@@ -119,6 +163,7 @@ MaintainerNotes: |4-
     * MozAppServices: `mozilla_appservices` in https://github.com/mozilla-mobile/android-components/blob/$MozAndroidComponents/buildSrc/src/main/java/Dependencies.kt
     * MozGlean: `mozilla_glean` in https://github.com/mozilla-mobile/android-components/blob/$MozAndroidComponents/buildSrc/src/main/java/Dependencies.kt
     * MozFennec: `version` in https://github.com/mozilla-mobile/android-components/blob/$MozAndroidComponents/buildSrc/src/main/java/Gecko.kt
+    * MozFennec: https://hg.mozilla.org/releases/mozilla-release/tags
     * MozAndroidComponentsAS: `android_components_version` in https://github.com/mozilla/application-services/blob/$MozAppServices/build.gradle
     * MozGleanAS: `mozilla_glean` in https://github.com/mozilla-mobile/android-components/blob/$MozAndroidComponentsAS/buildSrc/src/main/java/Dependencies.kt
     * pyenv: https://github.com/pyenv/pyenv/releases
@@ -127,5 +172,5 @@ MaintainerNotes: |4-
 ArchivePolicy: 4 versions
 AutoUpdateMode: None
 UpdateCheckMode: None
-CurrentVersion: 90.1.1
-CurrentVersionCode: 2901120
+CurrentVersion: 91.1.0
+CurrentVersionCode: 2911020