diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index d8d296de..beb601dd 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -15,6 +15,7 @@
 name: Android CI
 
 on:
+  workflow_dispatch:
   push:
     branches: [ master ]
   pull_request:
@@ -24,7 +25,7 @@ jobs:
 
   build:
     name: Build
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v1
diff --git a/.github/workflows/copy-branch.yml b/.github/workflows/copy-branch.yml
index f8f8572d..a1a0f006 100644
--- a/.github/workflows/copy-branch.yml
+++ b/.github/workflows/copy-branch.yml
@@ -5,6 +5,7 @@ name: Duplicates main to old master branch
 # Controls when the action will run. Triggers the workflow on push or pull request
 # events but only for the main branch
 on:
+  workflow_dispatch:
   push:
     branches: [ main ]
 
diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 00000000..034e8480
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,21 @@
+# Security Policy
+
+## Supported Versions
+
+Use this section to tell people about which versions of your project are
+currently being supported with security updates.
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 5.1.x   | :white_check_mark: |
+| 5.0.x   | :x:                |
+| 4.0.x   | :white_check_mark: |
+| < 4.0   | :x:                |
+
+## Reporting a Vulnerability
+
+Use this section to tell people how to report a vulnerability.
+
+Tell them where to go, how often they can expect to get an update on a
+reported vulnerability, what to expect if the vulnerability is accepted or
+declined, etc.