diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2a03d42..eabe029 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -25,10 +25,10 @@ jobs:
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
       - name: Build
-        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert false --run "xpg -v ${{ matrix.pg-version }} build"
+        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert true --run "xpg -v ${{ matrix.pg-version }} build"
 
       - name: Run tests
-        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert false --run "xpg -v ${{ matrix.pg-version }} test"
+        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert true --run "xpg -v ${{ matrix.pg-version }} test"
 
   test-on-macos:
     runs-on: macos-26
@@ -55,10 +55,10 @@ jobs:
           rm -rf ./build-${{ matrix.pg-version }}
 
       - name: Build
-        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert false --run "xpg -v ${{ matrix.pg-version }} build"
+        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert true --run "xpg -v ${{ matrix.pg-version }} build"
 
       - name: Run tests
-        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert false --run "xpg -v ${{ matrix.pg-version }} test"
+        run: nix-shell --argstr pgVersion "${{ matrix.pg-version }}" --arg cassert true --run "xpg -v ${{ matrix.pg-version }} test"
 
   loadtest:
     runs-on: ubuntu-latest
diff --git a/flake.lock b/flake.lock
index 704715e..0f9a553 100644
--- a/flake.lock
+++ b/flake.lock
@@ -43,16 +43,16 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1791394750,
-        "narHash": "sha256-SMv4EKUaGmfUyXyeGHW3AiX1vbef7El56RKTIxio8jQ=",
+        "lastModified": 1793674321,
+        "narHash": "sha256-wLcCioA8+xi7ck/gdZmBeZo/NJfXxvYYCVOpAGvCgK8=",
         "owner": "supabase",
         "repo": "xpg",
-        "rev": "8f2a2005e8e020e0db5a7cbb94a87a9dd3227411",
+        "rev": "27aedcb0a23bce2879e7b114369e9c937665082d",
         "type": "github"
       },
       "original": {
         "owner": "supabase",
-        "ref": "v2.6.0",
+        "ref": "v2.7.0",
         "repo": "xpg",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index f34b991..6e9ca56 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,7 +6,7 @@
     nixpkgs.url = "github:NixOS/nixpkgs/91c9a64ce2a84e648d0cf9671274bb9c2fb9ba60";
 
     xpg = {
-      url = "github:supabase/xpg/v2.6.0";
+      url = "github:supabase/xpg/v2.7.0";
     };
   };
 
diff --git a/test/test_misc.py b/test/test_misc.py
index c523db2..11dc43d 100644
--- a/test/test_misc.py
+++ b/test/test_misc.py
@@ -1,3 +1,13 @@
+
+def get_pg_version(conn) -> int:
+    (pg_version,) = conn.execute(
+            """
+        select current_setting('server_version_num');
+    """
+    ).fetchone()
+    return int(pg_version)
+
+
 def test_plpgsql_check(conn):
     """
     Test check all plpgsql functions (functions or trigger functions with defined 
@@ -33,4 +43,10 @@ def test_plpgsql_check(conn):
     ) ss
     ORDER BY (pcf).functionid::regprocedure::text, (pcf).lineno;
     """
-    assert len(conn.execute(sql).fetchall()) == 2
+
+    # The function random_delay_ms that defined in test/utils/loadtest.sql makes use of 
+    # the postgres function random_normal which only exists in pg16 and beyond. This 
+    # conditional assignment fixes issues resulting from that.
+    expected_warnings = (3 if get_pg_version(conn) < 160000 else 2)
+
+    assert len(conn.execute(sql).fetchall()) == expected_warnings