diff --git a/.circleci/config.yml b/.circleci/config.yml
index ee03ff8d2..707b71ee0 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -8,7 +8,7 @@ executors:
   # This must match .promu.yml.
   golang:
     docker:
-    - image: cimg/go:1.24
+    - image: cimg/go:1.25
 
 jobs:
   test:
@@ -23,7 +23,7 @@ jobs:
 
   integration:
     docker:
-    - image: cimg/go:1.24
+    - image: cimg/go:1.25
     - image: << parameters.postgres_image >>
       environment:
         POSTGRES_DB: circle_test
@@ -57,13 +57,11 @@ workflows:
         matrix:
           parameters:
             postgres_image:
-            - circleci/postgres:11
-            - circleci/postgres:12
-            - circleci/postgres:13
-            - cimg/postgres:14.9
-            - cimg/postgres:15.4
-            - cimg/postgres:16.0
-            - cimg/postgres:17.0
+            - cimg/postgres:13.22
+            - cimg/postgres:14.19
+            - cimg/postgres:15.14
+            - cimg/postgres:16.10
+            - cimg/postgres:17.6
     - prometheus/build:
         name: build
         parallelism: 3
diff --git a/.promu.yml b/.promu.yml
index 5f915289f..c9bb51e78 100644
--- a/.promu.yml
+++ b/.promu.yml
@@ -1,6 +1,6 @@
 go:
     # This must match .circle/config.yml.
-    version: 1.24
+    version: 1.25
 repository:
     path: github.com/prometheus-community/postgres_exporter
 build:
diff --git a/README.md b/README.md
index 01bd8b30d..beff2c793 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 
 Prometheus exporter for PostgreSQL server metrics.
 
-CI Tested PostgreSQL versions: `11`, `12`, `13`, `14`, `15`, `16`, `17`.
+CI Tested PostgreSQL versions: `13`, `14`, `15`, `16`, `17`.
 
 ## Quick Start
 This package is available for Docker:
diff --git a/go.mod b/go.mod
index 02a1fec5f..a14e35022 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,6 @@
 module github.com/prometheus-community/postgres_exporter
 
-go 1.23.0
-
-toolchain go1.24.1
+go 1.24.0
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.2