diff --git a/packages/sync-service/lib/electric/postgres/configuration.ex b/packages/sync-service/lib/electric/postgres/configuration.ex
index 9ce4fff7b1..daba5ea65f 100644
--- a/packages/sync-service/lib/electric/postgres/configuration.ex
+++ b/packages/sync-service/lib/electric/postgres/configuration.ex
@@ -41,7 +41,7 @@ defmodule Electric.Postgres.Configuration do
   @doc """
   Get Postgres server version
   """
-  @spec get_pg_version(Postgrex.conn()) :: integer
+  @spec get_pg_version(Postgrex.conn()) :: non_neg_integer()
   def get_pg_version(conn) do
     case Postgrex.query(
            conn,
diff --git a/packages/sync-service/lib/electric/replication/publication_manager.ex b/packages/sync-service/lib/electric/replication/publication_manager.ex
index f717f1cf10..d69142644c 100644
--- a/packages/sync-service/lib/electric/replication/publication_manager.ex
+++ b/packages/sync-service/lib/electric/replication/publication_manager.ex
@@ -238,7 +238,7 @@ defmodule Electric.Replication.PublicationManager do
     Configuration.configure_tables_for_replication!(
       db_pool,
       Map.values(relation_filters),
-      fn -> pg_version end,
+      pg_version,
       publication_name
     )
 
diff --git a/packages/sync-service/test/support/component_setup.ex b/packages/sync-service/test/support/component_setup.ex
index baf7cabb4c..1cd1be1865 100644
--- a/packages/sync-service/test/support/component_setup.ex
+++ b/packages/sync-service/test/support/component_setup.ex
@@ -71,8 +71,7 @@ defmodule Support.ComponentSetup do
       name: server,
       stack_id: ctx.stack_id,
       publication_name: ctx.publication_name,
-      db_pool: ctx.pool,
-      pg_version: Application.fetch_env!(:electric, :pg_version_for_tests)
+      db_pool: ctx.pool
     )
 
     %{