diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 559455aedf3..8b7cf97ce90 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,8 @@ jobs:
       id-token: "write"
     services:
       postgres:
-        image: postgres:15.4
+        # Image is pinned to v15, OK since it's just for testing
+        image: ankane/pgvector
         # This env variables must be the same in the file PARABOL_BUILD_ENV_PATH
         env:
           POSTGRES_PASSWORD: "temppassword"
diff --git a/packages/server/email/MailManagerDebug.ts b/packages/server/email/MailManagerDebug.ts
index 0ac3458e671..3ca089c510b 100644
--- a/packages/server/email/MailManagerDebug.ts
+++ b/packages/server/email/MailManagerDebug.ts
@@ -9,9 +9,11 @@ export default class MailManagerDebug extends MailManager {
     Subject: ${subject}
     Body: ${body}`)
 
+    const toStr = to.toString()
+
     const {html} = options
     // limit filename length so it does not exceed filesystem limits
-    const filename = `${to.slice(0, 50)}-${subject.replaceAll(' ', '-').slice(0, 180)}.html`
+    const filename = `${toStr.slice(0, 50)}-${subject.replaceAll(' ', '-').slice(0, 180)}.html`
     const folder = '/tmp'
     fs.writeFileSync(`${folder}/${filename}`, html)
     // make it a link so you can click it in the terminal
diff --git a/packages/server/package.json b/packages/server/package.json
index 70538edd626..ddeec07ce0d 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -128,7 +128,7 @@
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "relay-runtime": "^14.1.0",
-    "rethinkdb-ts": "2.5.1",
+    "rethinkdb-ts": "2.6.0",
     "rrule": "^2.7.2",
     "samlify": "^2.8.2",
     "sharp": "^0.32.6",
diff --git a/packages/server/postgres/Dockerfile b/packages/server/postgres/Dockerfile
index 8558479fe14..e37b75a097e 100644
--- a/packages/server/postgres/Dockerfile
+++ b/packages/server/postgres/Dockerfile
@@ -2,9 +2,16 @@ FROM postgres:15.4
 
 ADD extensions /extensions
 
-RUN apt-get update && apt-get install -y build-essential locales
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    locales \
+    postgresql-server-dev-15 \
+    git
 
 RUN cd /extensions/postgres-json-schema && make install && make installcheck
+RUN git clone --branch v0.5.0 \
+       https://github.com/pgvector/pgvector.git /extensions/pgvector && \
+       cd extensions/pgvector && make clean && make && make install
 
 RUN localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
 
diff --git a/packages/server/postgres/extensions/install.sql b/packages/server/postgres/extensions/install.sql
index ddc60250061..b2670548069 100644
--- a/packages/server/postgres/extensions/install.sql
+++ b/packages/server/postgres/extensions/install.sql
@@ -1 +1,2 @@
 CREATE EXTENSION IF NOT EXISTS "postgres-json-schema";
+CREATE EXTENSION IF NOT EXISTS "vector";
diff --git a/yarn.lock b/yarn.lock
index 25d9bed60eb..387e01c6ac9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12898,6 +12898,7 @@ draft-js-utils@^1.4.0:
 
 "draft-js@https://github.com/mattkrick/draft-js/tarball/559a21968370c4944511657817d601a6c4ade0f6":
   version "0.10.5"
+  uid "025fddba56f21aaf3383aee778e0b17025c9a7bc"
   resolved "https://github.com/mattkrick/draft-js/tarball/559a21968370c4944511657817d601a6c4ade0f6#025fddba56f21aaf3383aee778e0b17025c9a7bc"
   dependencies:
     fbjs "^0.8.15"
@@ -21053,7 +21054,7 @@ rethinkdb-ts-migrate@^0.3.6:
     sucrase "^3.21.0"
     tslib "^2.4.0"
 
-rethinkdb-ts@2.5.1, rethinkdb-ts@2.6.0, rethinkdb-ts@^2.4.5:
+rethinkdb-ts@2.6.0, rethinkdb-ts@^2.4.5:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/rethinkdb-ts/-/rethinkdb-ts-2.6.0.tgz#25ad1561d58836761463718470310b4bf911f9eb"
   integrity sha512-RKkTP/P1dNNK265qmNjBqiiWlawRw7+MNVoro9UJa8RPvdB9+MJwzWxz7rgTLrfJr77FuaRQMqzlRexx6ivfUQ==