diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 49c43ed6..03332bd3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -52,16 +52,15 @@ jobs:
       fail-fast: false
       matrix:
         elixirbase:
-          - "1.14.5-erlang-23.3.4.9-alpine-3.16.9"
+          - "1.15.6-erlang-25.3.2.6-alpine-3.18.4"
         postgres:
           - "16.2-alpine"
           - "11.11-alpine"
           - "9.6-alpine"
-          - "9.5-alpine"
         pool_count:
           - "1"
         include:
-          - elixirbase: "1.14.5-erlang-23.3.4.9-alpine-3.16.9"
+          - elixirbase: "1.15.6-erlang-25.3.2.6-alpine-3.18.4"
             postgres: "16.2-alpine"
             pool_count: "4"
     steps:
@@ -79,7 +78,7 @@ jobs:
       fail-fast: false
       matrix:
         elixirbase:
-          - "1.14.5-erlang-23.3.4.9-alpine-3.16.9"
+          - "1.15.6-erlang-25.3.2.6-alpine-3.18.4"
         mysql:
           - "5.7"
           - "8.0"
@@ -96,7 +95,7 @@ jobs:
       fail-fast: false
       matrix:
         elixirbase:
-          - "1.14.5-erlang-23.3.4.9-alpine-3.16.9"
+          - "1.15.6-erlang-25.3.2.6-alpine-3.18.4"
         mssql:
           - "2019"
           - "2022"
diff --git a/Earthfile b/Earthfile
index 136d9a44..33edb41d 100644
--- a/Earthfile
+++ b/Earthfile
@@ -41,12 +41,7 @@ integration-test-postgres:
     FROM +setup-base
     ARG POSTGRES="11.11"
 
-    IF [ "$POSTGRES" = "9.5-alpine" ]
-        # for 9.5 we require a downgraded version of pg_dump;
-        # and in the 3.4 version, it is not included in postgresql-client but rather in postgresql
-        RUN echo 'http://dl-cdn.alpinelinux.org/alpine/v3.4/main' >> /etc/apk/repositories
-        RUN apk add postgresql=9.5.13-r0
-    ELSE IF [ "$POSTGRES" = "16.2-alpine" ]
+    IF [ "$POSTGRES" = "16.2-alpine" ]
         # for 16 we need an upgraded version of pg_dump;
         # alpine 3.16 does not come with the postgres 16 client by default;
         # we must first update the public keys for the packages because they
diff --git a/integration_test/myxql/storage_test.exs b/integration_test/myxql/storage_test.exs
index 901bbd44..8df18235 100644
--- a/integration_test/myxql/storage_test.exs
+++ b/integration_test/myxql/storage_test.exs
@@ -202,6 +202,6 @@ defmodule Ecto.Integration.StorageTest do
                PoolRepo.config()
              )
 
-    assert output =~ "INSERT INTO `schema_migrations` VALUES ("
+    assert output =~ "INSERT INTO `schema_migrations`"
   end
 end