diff --git a/8/Dockerfile b/8/Dockerfile
index 43f6214..7914f07 100644
--- a/8/Dockerfile
+++ b/8/Dockerfile
@@ -234,7 +234,7 @@ RUN set -xe; \
         smbclient-1.1.1 \
         uploadprogress-2.0.2 \
         uuid-1.2.0 \
-        xdebug-3.3.0 \
+        xdebug-3.3.1 \
         xhprof-2.3.9 \
         yaml-2.2.3; \
     \
diff --git a/README.md b/README.md
index d5a506f..09603d1 100644
--- a/README.md
+++ b/README.md
@@ -270,7 +270,7 @@ e.g. `$PHP_EXTENSIONS_DISABLE=event,ds`
 | tokenizer        |        |        |        |
 | [uploadprogress] | 2.0.2  | 2.0.2  | 2.0.2  |
 | [uuid]           | 1.2.0  | 1.2.0  | 1.2.0  |
-| [xdebug]         | 3.3.0  | 3.3.0  | 3.3.0  |
+| [xdebug]         | 3.3.1  | 3.3.1  | 3.3.1  |
 | [xhprof]         | 2.3.9  | 2.3.9  | 2.3.9  |
 | xml              |        |        |        |
 | xmlreader        |        |        |        |