diff --git a/.github/workflows/auto-casdiff-comment.yaml b/.github/workflows/auto-casdiff-comment.yaml
index 59ffc0eb..f5ff06e6 100644
--- a/.github/workflows/auto-casdiff-comment.yaml
+++ b/.github/workflows/auto-casdiff-comment.yaml
@@ -26,7 +26,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v7
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
           check-latest: true
           cache: true
 
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index fd6855d3..ec6e680c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -19,7 +19,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v7
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
           check-latest: true
           cache: true
       - name: Test
diff --git a/.github/workflows/fetch.yaml b/.github/workflows/fetch.yaml
index 5ddbd7d5..4e45a21b 100644
--- a/.github/workflows/fetch.yaml
+++ b/.github/workflows/fetch.yaml
@@ -27,7 +27,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v7
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
           check-latest: true
           cache: true
       - uses: bufbuild/buf-action@fd21066df7214747548607aaa45548ba2b9bc1ff # v1.4.0
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 11e67f66..a5abe7d9 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -25,7 +25,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v7
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
           check-latest: true
           cache: true
       - name: Create Release
@@ -70,7 +70,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v7
         with:
-          go-version: 1.26.x
+          go-version: 1.27.x
           check-latest: true
           cache: true
       - name: Auth To GCP
diff --git a/.golangci.yaml b/.golangci.yaml
index e4d6c0cf..4b6fa9a6 100644
--- a/.golangci.yaml
+++ b/.golangci.yaml
@@ -2,23 +2,24 @@ version: "2"
 linters:
   default: all
   disable:
-    - cyclop      # covered by gocyclo
-    - depguard    # requires configuration for all non-stdlib deps
-    - exhaustruct # irrelevant for modules
-    - funlen      # rely on code review to limit function length
-    - gocognit    # dubious "cognitive overhead" quantification
-    - gomodguard  # replaced by gomodguard_v2
-    - ireturn     # "accept interfaces, return structs" isn't ironclad
-    - lll         # don't want hard limits for line length
-    - maintidx    # covered by gocyclo
-    - mnd         # some unnamed constants are okay
-    - nlreturn    # generous whitespace violates house style
-    - noinlineerr # inline error handling is idiomatic here
-    - testpackage # internal tests are fine
-    - varnamelen  # too strict for common from/to and format f variables
-    - wrapcheck   # don't _always_ need to wrap errors
-    - wsl         # generous whitespace violates house style
-    - wsl_v5      # generous whitespace violates house style
+    - cyclop         # covered by gocyclo
+    - depguard       # requires configuration for all non-stdlib deps
+    - exhaustruct    # irrelevant for modules
+    - exhaustruct_v5 # irrelevant for modules
+    - funlen         # rely on code review to limit function length
+    - gocognit       # dubious "cognitive overhead" quantification
+    - gomodguard     # replaced by gomodguard_v2
+    - ireturn        # "accept interfaces, return structs" isn't ironclad
+    - lll            # don't want hard limits for line length
+    - maintidx       # covered by gocyclo
+    - mnd            # some unnamed constants are okay
+    - nlreturn       # generous whitespace violates house style
+    - noinlineerr    # inline error handling is idiomatic here
+    - testpackage    # internal tests are fine
+    - varnamelen     # too strict for common from/to and format f variables
+    - wrapcheck      # don't _always_ need to wrap errors
+    - wsl            # generous whitespace violates house style
+    - wsl_v5         # generous whitespace violates house style
   settings:
     errcheck:
       check-type-assertions: true
diff --git a/Makefile b/Makefile
index 7ef096a9..d9438c00 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ MAKEFLAGS += --no-builtin-rules
 MAKEFLAGS += --no-print-directory
 BIN := .tmp/bin
 COPYRIGHT_YEARS := 2021-2025
-GOLANGCI_LINT_VERSION ?= v2.12.2
+GOLANGCI_LINT_VERSION ?= v2.13.2
 LICENSE_IGNORE := --ignore /testdata/ --ignore '\.yaml$$' --ignore '\.yml$$'
 # Set to use a different compiler. For example, `GO=go1.18rc1 make test`.
 GO ?= go
diff --git a/cmd/commentprcasdiff/comment_poster.go b/cmd/commentprcasdiff/comment_poster.go
index 3c0a16f4..f5c51fca 100644
--- a/cmd/commentprcasdiff/comment_poster.go
+++ b/cmd/commentprcasdiff/comment_poster.go
@@ -71,9 +71,9 @@ func listExistingBotComments(ctx context.Context, client *githubutil.Client, prN
 	const githubActionsBotUsername = "github-actions[bot]"
 	result := make(map[commentKey]int64)
 	opts := &github.PullRequestListCommentsOptions{
-		Sort:        "created",
-		Direction:   "asc",
-		ListOptions: github.ListOptions{PerPage: 100},
+		Sort:      "created",
+		Direction: "asc",
+		PerPage:   100,
 	}
 	for {
 		comments, resp, err := client.GitHub.PullRequests.ListComments(
diff --git a/go.mod b/go.mod
index 490a0651..43cf582a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/bufbuild/modules
 
-go 1.26.7
+go 1.27
 
 require (
 	buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.36.12-20260825204119-511051f7f437.2