diff --git a/packages/viz/CHANGELOG.md b/packages/viz/CHANGELOG.md
index d41f858..f162f3a 100644
--- a/packages/viz/CHANGELOG.md
+++ b/packages/viz/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+* Update Graphviz to 12.2.0.
+
 ## 3.10.0
 
 * Add renderFormats() method.
diff --git a/packages/viz/src/module/Dockerfile b/packages/viz/src/module/Dockerfile
index f54447b..8ae4b03 100644
--- a/packages/viz/src/module/Dockerfile
+++ b/packages/viz/src/module/Dockerfile
@@ -8,7 +8,7 @@ RUN mkdir -p expat && tar -zxf ./expat.tar.gz --strip-components 1 --directory e
 RUN cd expat && emconfigure ./configure --host=wasm32 --disable-shared --prefix="${PREFIX}" --libdir="${PREFIX}/lib" CFLAGS="-Oz" CXXFLAGS="-Oz"
 RUN cd expat/lib && emmake make all install
 
-ADD "https://gitlab.com/api/v4/projects/4207231/packages/generic/graphviz-releases/12.1.1/graphviz-12.1.1.tar.gz" ./graphviz.tar.gz
+ADD "https://gitlab.com/api/v4/projects/4207231/packages/generic/graphviz-releases/12.2.0/graphviz-12.2.0.tar.gz" ./graphviz.tar.gz
 
 RUN mkdir -p graphviz && tar -zxf ./graphviz.tar.gz --strip-components 1 --directory graphviz
 RUN cd graphviz && emconfigure ./configure --host=wasm32 --disable-ltdl --prefix="${PREFIX}" --libdir="${PREFIX}/lib" EXPAT_CFLAGS="-I${PREFIX}/include" EXPAT_LIBS="-L${PREFIX}/lib -lexpat" CFLAGS="-Oz" CXXFLAGS="-Oz"
diff --git a/packages/viz/test/context-info.test.mjs b/packages/viz/test/context-info.test.mjs
index 8c2d347..b9ff4c7 100644
--- a/packages/viz/test/context-info.test.mjs
+++ b/packages/viz/test/context-info.test.mjs
@@ -10,7 +10,7 @@ describe("Viz", function() {
 
   describe("graphvizVersion", function() {
     it("returns the Graphviz version", function() {
-      assert.strictEqual(viz.graphvizVersion, "12.1.1");
+      assert.strictEqual(viz.graphvizVersion, "12.2.0");
     });
   });
 
diff --git a/packages/viz/test/standalone.test.mjs b/packages/viz/test/standalone.test.mjs
index 4678aca..66e8d06 100644
--- a/packages/viz/test/standalone.test.mjs
+++ b/packages/viz/test/standalone.test.mjs
@@ -4,7 +4,7 @@ import Viz from "../src/viz.mjs";
 
 describe("graphvizVersion", function() {
   it("returns the Graphviz version", function() {
-    assert.strictEqual(VizPackage.graphvizVersion, "12.1.1");
+    assert.strictEqual(VizPackage.graphvizVersion, "12.2.0");
   });
 });