diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9fae3383572..9ffdc995fbe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,9 +19,9 @@ jobs:
     strategy:
       matrix:
         include:
-          - { runner: spacetimedb-runner, smoketest_args: --docker }
+          - { runner: ubuntu-latest, smoketest_args: --docker }
           - { runner: windows-latest, smoketest_args: --no-build-cli }
-        runner: [ spacetimedb-runner, windows-latest ]
+        runner: [ ubuntu-latest, windows-latest ]
     runs-on: ${{ matrix.runner }}
     steps:
       - name: Find Git ref
@@ -78,7 +78,7 @@ jobs:
 
   test:
     name: Test Suite
-    runs-on: spacetimedb-runner
+    runs-on: ubuntu-latest
     steps:
       - name: Find Git ref
         env:
@@ -139,7 +139,7 @@ jobs:
 
   lints:
     name: Lints
-    runs-on: spacetimedb-runner
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
         uses: actions/checkout@v3
@@ -178,7 +178,7 @@ jobs:
 
   wasm_bindings:
     name: Build and test wasm bindings
-    runs-on: spacetimedb-runner
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
 
@@ -231,7 +231,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - { target: x86_64-unknown-linux-gnu, runner: spacetimedb-runner }
+          - { target: x86_64-unknown-linux-gnu, runner: ubuntu-latest }
           - { target: aarch64-unknown-linux-gnu, runner: arm-runner }
           - { target: aarch64-apple-darwin, runner: macos-latest }
           - { target: x86_64-pc-windows-msvc, runner: windows-latest }
diff --git a/.github/workflows/csharp-test.yml b/.github/workflows/csharp-test.yml
index c6721481fef..2b78e634e2c 100644
--- a/.github/workflows/csharp-test.yml
+++ b/.github/workflows/csharp-test.yml
@@ -8,6 +8,7 @@ on:
 
 jobs:
   unity-testsuite:
+    # This can't go on ubuntu-latest (at least as-is) because it relies on pre-installed Unity.
     runs-on: spacetimedb-runner
     # Cancel any previous testsuites running on the same PR and/or ref.
     concurrency:
diff --git a/.github/workflows/upgrade-version-check.yml b/.github/workflows/upgrade-version-check.yml
index aa477cb4523..b88742afebb 100644
--- a/.github/workflows/upgrade-version-check.yml
+++ b/.github/workflows/upgrade-version-check.yml
@@ -8,7 +8,7 @@ permissions: read-all
 
 jobs:
   version_upgrade_check:
-    runs-on: spacetimedb-runner
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v3