diff --git a/tools/cli/go.mod b/tools/cli/go.mod
index 134a14c262..6596324362 100644
--- a/tools/cli/go.mod
+++ b/tools/cli/go.mod
@@ -7,7 +7,7 @@ toolchain go1.26.0
 require (
 	github.com/getkin/kin-openapi v0.140.0
 	github.com/iancoleman/strcase v0.3.0
-	github.com/oasdiff/oasdiff v1.16.0
+	github.com/oasdiff/oasdiff v1.18.6
 	github.com/spf13/afero v1.15.0
 	github.com/spf13/cobra v1.10.2
 	github.com/stretchr/testify v1.11.1
diff --git a/tools/cli/go.sum b/tools/cli/go.sum
index 5e6bf27416..5d1d914d6b 100644
--- a/tools/cli/go.sum
+++ b/tools/cli/go.sum
@@ -26,8 +26,8 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/oasdiff/oasdiff v1.16.0 h1:dcV0Y4oO84CrAKddUzdkjWDm/jHw0hXaohurxdgABRs=
-github.com/oasdiff/oasdiff v1.16.0/go.mod h1:v/DNQeB3qIYBf33xxi1dReXImDUMaCk4QNX93jpwSzg=
+github.com/oasdiff/oasdiff v1.18.6 h1:Zc9YxkAhJiHQaftDXFKRNS1iwPZz/lkLXX6Fs3Hdqm8=
+github.com/oasdiff/oasdiff v1.18.6/go.mod h1:eColoNHeEiWTsztKtZ+39xTEz+sHl/OSW4EbjYP8A1Y=
 github.com/oasdiff/yaml v0.1.0 h1:0bqZjfKc/8S9urj4JuwepX41WX9EoA6ifhU3SV06cXg=
 github.com/oasdiff/yaml v0.1.0/go.mod h1:kOlRmMdL2X3vucLCEQO5u61SU22RysnfXvcttrZA1O0=
 github.com/oasdiff/yaml3 v0.0.13 h1:06svmvOHOVBqF81+sY2EUScvUI/iS/vl2VIeUUxZQwg=