diff --git a/go.mod b/go.mod
index 58f4193..65c9119 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,6 @@ require (
 	github.com/koding/multiconfig v0.0.0-20171124222453-69c27309b2d7
 	github.com/mcuadros/go-defaults v1.2.0
 	github.com/mitchellh/mapstructure v1.5.0
-	github.com/stretchr/testify v1.10.0
 	google.golang.org/grpc v1.73.0
 	google.golang.org/protobuf v1.36.6
 )
@@ -25,7 +24,6 @@ require (
 	github.com/cloudflare/circl v1.6.1 // indirect
 	github.com/cyphar/filepath-securejoin v0.4.1 // indirect
 	github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/fatih/camelcase v1.0.0 // indirect
 	github.com/fatih/structs v1.1.0 // indirect
@@ -35,7 +33,6 @@ require (
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
 	github.com/pjbgf/sha1cd v0.3.2 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/sergi/go-diff v1.4.0 // indirect
 	github.com/skeema/knownhosts v1.3.1 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
@@ -46,5 +43,4 @@ require (
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/internal/parser/diff/parser_test.go b/internal/parser/diff/parser_test.go
index a00d3b0..9315c42 100644
--- a/internal/parser/diff/parser_test.go
+++ b/internal/parser/diff/parser_test.go
@@ -2,8 +2,6 @@ package diff
 
 import (
 	"testing"
-
-	"github.com/stretchr/testify/assert"
 )
 
 func TestGenerateDiffComment(t *testing.T) {
@@ -17,7 +15,9 @@ func TestGenerateDiffComment(t *testing.T) {
 		}
 		comment := d.generateDiffComment(answerStr, resultStr, output)
 		expected := "```diff\n(2 line(s) of common prefix hidden)\n\n- line3\n- line4\n+ lineA\n+ lineB\n```\n"
-		assert.Equal(t, expected, comment)
+		if comment != expected {
+			t.Errorf("expected %q, got %q", expected, comment)
+		}
 	})
 
 	t.Run("HideCommonPrefix with no common prefix", func(t *testing.T) {
@@ -28,7 +28,9 @@ func TestGenerateDiffComment(t *testing.T) {
 		}
 		comment := d.generateDiffComment(answerStr, resultStr, output)
 		expected := "```diff\n- line1\n- line2\n+ lineA\n+ lineB\n```\n"
-		assert.Equal(t, expected, comment)
+		if comment != expected {
+			t.Errorf("expected %q, got %q", expected, comment)
+		}
 	})
 
 	t.Run("HideCommonPrefix with identical content", func(t *testing.T) {
@@ -39,7 +41,9 @@ func TestGenerateDiffComment(t *testing.T) {
 		}
 		comment := d.generateDiffComment(answerStr, resultStr, output)
 		expected := "```diff\n(2 line(s) of common prefix hidden)\n\n\n```\n"
-		assert.Equal(t, expected, comment)
+		if comment != expected {
+			t.Errorf("expected %q, got %q", expected, comment)
+		}
 	})
 
 	t.Run("HideCommonPrefix with only common prefix", func(t *testing.T) {
@@ -50,7 +54,9 @@ func TestGenerateDiffComment(t *testing.T) {
 		}
 		comment := d.generateDiffComment(answerStr, resultStr, output)
 		expected := "```diff\n(2 line(s) of common prefix hidden)\n\n+ lineA\n```\n"
-		assert.Equal(t, expected, comment)
+		if comment != expected {
+			t.Errorf("expected %q, got %q", expected, comment)
+		}
 	})
 
 	t.Run("MaxDiffLines truncation", func(t *testing.T) {
@@ -62,6 +68,8 @@ func TestGenerateDiffComment(t *testing.T) {
 		}
 		comment := d.generateDiffComment(answerStr, resultStr, output)
 		expected := "```diff\n(3 line(s) of common prefix hidden)\n\n- line4\n- line5\n- line6\n+ lineA\n+ lineB\n+ lineC\n\n(truncated)\n```\n"
-		assert.Equal(t, expected, comment)
+		if comment != expected {
+			t.Errorf("expected %q, got %q", expected, comment)
+		}
 	})
 }