diff --git a/environment.yml b/environment.yml
index 55124a5..08b52d9 100644
--- a/environment.yml
+++ b/environment.yml
@@ -3,5 +3,5 @@ channels:
   - conda-forge
 dependencies:
   - branca
-  - ipycanvas=0.4.1
+  - ipycanvas=0.4.2
   - ipyevents
diff --git a/ipycanvas/_frontend.py b/ipycanvas/_frontend.py
index 35fd318..bb75142 100644
--- a/ipycanvas/_frontend.py
+++ b/ipycanvas/_frontend.py
@@ -9,4 +9,4 @@
 """
 
 module_name = "ipycanvas"
-module_version = "^0.4.1"
+module_version = "^0.4.2"
diff --git a/ipycanvas/_version.py b/ipycanvas/_version.py
index de2e0d1..e85a14e 100644
--- a/ipycanvas/_version.py
+++ b/ipycanvas/_version.py
@@ -4,5 +4,5 @@
 # Copyright (c) Martin Renou.
 # Distributed under the terms of the Modified BSD License.
 
-version_info = (0, 4, 1)
+version_info = (0, 4, 2)
 __version__ = ".".join(map(str, version_info))
diff --git a/package-lock.json b/package-lock.json
index a4938be..cf64f7d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "ipycanvas",
-  "version": "0.4.1",
+  "version": "0.4.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1725,7 +1725,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -1746,12 +1747,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -1766,17 +1769,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -1893,7 +1899,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -1905,6 +1912,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -1919,6 +1927,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -1926,12 +1935,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -1950,6 +1961,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2030,7 +2042,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2042,6 +2055,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2127,7 +2141,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2163,6 +2178,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2182,6 +2198,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2225,12 +2242,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
diff --git a/package.json b/package.json
index c534642..a54a61c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ipycanvas",
-  "version": "0.4.1",
+  "version": "0.4.2",
   "description": "Interactive widgets library exposing the browser's Canvas API",
   "keywords": [
     "jupyter",