diff --git a/packages/graphile-build-pg/res/watch-fixtures.sql b/packages/graphile-build-pg/res/watch-fixtures.sql
index f6c1dc1ae..7ef31de6b 100644
--- a/packages/graphile-build-pg/res/watch-fixtures.sql
+++ b/packages/graphile-build-pg/res/watch-fixtures.sql
@@ -49,26 +49,42 @@ $$ language plpgsql;
 create event trigger postgraphile_watch_ddl
   on ddl_command_end
   when tag in (
+    -- Ref: https://www.postgresql.org/docs/10/static/event-trigger-matrix.html
+    'ALTER AGGREGATE',
     'ALTER DOMAIN',
+    'ALTER EXTENSION',
     'ALTER FOREIGN TABLE',
     'ALTER FUNCTION',
+    'ALTER POLICY',
     'ALTER SCHEMA',
     'ALTER TABLE',
     'ALTER TYPE',
     'ALTER VIEW',
     'COMMENT',
+    'CREATE AGGREGATE',
     'CREATE DOMAIN',
+    'CREATE EXTENSION',
     'CREATE FOREIGN TABLE',
     'CREATE FUNCTION',
+    'CREATE INDEX',
+    'CREATE POLICY',
+    'CREATE RULE',
     'CREATE SCHEMA',
     'CREATE TABLE',
     'CREATE TABLE AS',
     'CREATE VIEW',
+    'DROP AGGREGATE',
     'DROP DOMAIN',
+    'DROP EXTENSION',
     'DROP FOREIGN TABLE',
     'DROP FUNCTION',
+    'DROP INDEX',
+    'DROP OWNED',
+    'DROP POLICY',
+    'DROP RULE',
     'DROP SCHEMA',
     'DROP TABLE',
+    'DROP TYPE',
     'DROP VIEW',
     'GRANT',
     'REVOKE',
diff --git a/packages/graphile-build/package.json b/packages/graphile-build/package.json
index 5d29544c0..161ca3553 100644
--- a/packages/graphile-build/package.json
+++ b/packages/graphile-build/package.json
@@ -28,7 +28,7 @@
   },
   "homepage": "https://graphile.org/graphile-build/",
   "dependencies": {
-    "@types/graphql": "0.13.4",
+    "@types/graphql": "^0.13.4",
     "debug": ">=2 <3",
     "graphql-parse-resolve-info": "4.0.0-rc.6",
     "lodash": ">=4 <5",
diff --git a/packages/graphql-parse-resolve-info/package.json b/packages/graphql-parse-resolve-info/package.json
index b84728bdb..71a17d9dc 100644
--- a/packages/graphql-parse-resolve-info/package.json
+++ b/packages/graphql-parse-resolve-info/package.json
@@ -44,7 +44,7 @@
     "typescript": "3.0.1"
   },
   "dependencies": {
-    "@types/graphql": "0.13.4",
+    "@types/graphql": "^0.13.4",
     "debug": ">=2 <3"
   },
   "files": [
diff --git a/packages/postgraphile-core/package.json b/packages/postgraphile-core/package.json
index dd6f22ddd..0f9e514b0 100644
--- a/packages/postgraphile-core/package.json
+++ b/packages/postgraphile-core/package.json
@@ -20,7 +20,7 @@
     "url": "https://github.com/graphile/graphile-build/issues"
   },
   "dependencies": {
-    "@types/graphql": "0.13.4",
+    "@types/graphql": "^0.13.4",
     "graphile-build": "4.0.0-rc.6",
     "graphile-build-pg": "4.0.0-rc.6"
   },
diff --git a/yarn.lock b/yarn.lock
index 50a99a00b..ab37b81f5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -76,7 +76,7 @@
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/@types/events/-/events-1.2.0.tgz#81a6731ce4df43619e5c8c945383b3e62a89ea86"
 
-"@types/graphql@0.13.4":
+"@types/graphql@^0.13.4":
   version "0.13.4"
   resolved "https://registry.yarnpkg.com/@types/graphql/-/graphql-0.13.4.tgz#55ae9c29f0fd6b85ee536f5c72b4769d5c5e06b1"