diff --git a/src/nerdbank-streams/package.json b/src/nerdbank-streams/package.json
index 2166b12f..819223af 100644
--- a/src/nerdbank-streams/package.json
+++ b/src/nerdbank-streams/package.json
@@ -50,7 +50,7 @@
     "mkdirp": "3.0.1",
     "nerdbank-gitversioning": "3.9.50",
     "path": "0.12.7",
-    "prettier": "3.8.1",
+    "prettier": "3.8.3",
     "promise": "8.3.0",
     "ts-jest": "29.4.6",
     "ts-node": "10.9.2",
diff --git a/src/nerdbank-streams/yarn.lock b/src/nerdbank-streams/yarn.lock
index 2f98fea0..1f2fc40d 100644
--- a/src/nerdbank-streams/yarn.lock
+++ b/src/nerdbank-streams/yarn.lock
@@ -5371,10 +5371,10 @@ prettier-linter-helpers@^1.0.1:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@3.8.1:
-  version "3.8.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.8.1.tgz#edf48977cf991558f4fcbd8a3ba6015ba2a3a173"
-  integrity sha512-UOnG6LftzbdaHZcKoPFtOcCKztrQ57WkHDeRD9t/PTQtmT0NHSeWWepj6pS0z/N7+08BHFDQVUrfmfMRcZwbMg==
+prettier@3.8.3:
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.8.3.tgz#560f2de55bf01b4c0503bc629d5df99b9a1d09b0"
+  integrity sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw==
 
 pretty-format@30.3.0, pretty-format@^30.0.0:
   version "30.3.0"