diff --git a/dot_config/devcontainer/mise.toml b/dot_config/devcontainer/mise.toml
index edeb484ec..b0b67baa8 100644
--- a/dot_config/devcontainer/mise.toml
+++ b/dot_config/devcontainer/mise.toml
@@ -15,7 +15,7 @@ node                             = "22.19.0"
 "npm:@taplo/cli"                 = "0.7.0"
 "npm:@typescript/native-preview" = "7.0.0-dev.20260331.1"
 "npm:ccusage"                    = "18.0.10"
-"npm:prettier"                   = "3.8.1"
+"npm:prettier"                   = "3.8.3"
 python                           = "3.14.3"
 
 [settings.npm]
diff --git a/dot_config/mise/config.toml b/dot_config/mise/config.toml
index 0b944e167..fb1825fdf 100644
--- a/dot_config/mise/config.toml
+++ b/dot_config/mise/config.toml
@@ -85,7 +85,7 @@ node                                                        = "22.19.0"
 "npm:macos-notify-mcp"                                      = "0.0.8"
 "npm:open-cli"                                              = "9.0.0"
 "npm:playwright"                                            = "1.56.0"
-"npm:prettier"                                              = "3.8.1"
+"npm:prettier"                                              = "3.8.3"
 "npm:renovate"                                              = "43.103.0"
 "npm:ulid"                                                  = "3.0.2"
 "pipx:fast-resume"                                          = "1.17.2"
diff --git a/mise.toml b/mise.toml
index d680054d3..aef80b291 100644
--- a/mise.toml
+++ b/mise.toml
@@ -96,5 +96,5 @@ run = [
 "aqua:suzuki-shunsuke/ghalint" = "1.5.5"
 "aqua:suzuki-shunsuke/pinact"  = "3.9.0"
 "aqua:tamasfe/taplo"           = "0.10.0"
-"npm:prettier"                 = "3.8.1"
+"npm:prettier"                 = "3.8.3"
 "pipx:zizmor"                  = "1.23.1"