diff --git a/go.mod b/go.mod
index ad96ebb2..cc0bf937 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	go.arcalot.io/log/v2 v2.1.0
 	go.flow.arcalot.io/deployer v0.6.0-beta1
 	go.flow.arcalot.io/dockerdeployer v0.7.0
-	go.flow.arcalot.io/expressions v0.4.1
+	go.flow.arcalot.io/expressions v0.4.2
 	go.flow.arcalot.io/kubernetesdeployer v0.9.1
 	go.flow.arcalot.io/pluginsdk v0.12.0
 	go.flow.arcalot.io/podmandeployer v0.11.0
diff --git a/go.sum b/go.sum
index 364015b5..fb88809f 100644
--- a/go.sum
+++ b/go.sum
@@ -139,8 +139,8 @@ go.flow.arcalot.io/deployer v0.6.0-beta1 h1:6wVGi/D5rHcT1pnQETg9ZAq5PCxArPwg0MNj
 go.flow.arcalot.io/deployer v0.6.0-beta1/go.mod h1:MDaDc9xDRjQN5TyTvvKMXipc5Khe8NLOnUjh31Nm0wU=
 go.flow.arcalot.io/dockerdeployer v0.7.0 h1:zQi/r5FVi1MBD4Z+I9l0i4nUQvjBSaZXdhtVKs3zPcM=
 go.flow.arcalot.io/dockerdeployer v0.7.0/go.mod h1:xIPCRSnyb/JEitUzsY2deWa7VwVZJd+opLNcFTcrN8U=
-go.flow.arcalot.io/expressions v0.4.1 h1:WOl3DtDcWAmPKupwYxJV3bVYKPoMgAmQbECfiUgv/0s=
-go.flow.arcalot.io/expressions v0.4.1/go.mod h1:FA/50wX1+0iTgW/dFeeE1yOslZSmfBaMNR4IiMYRwxc=
+go.flow.arcalot.io/expressions v0.4.2 h1:nEfxpWGEG1+59CoiAnS3AUQ+j2RZcUSPhPGjwPd+wOA=
+go.flow.arcalot.io/expressions v0.4.2/go.mod h1:FA/50wX1+0iTgW/dFeeE1yOslZSmfBaMNR4IiMYRwxc=
 go.flow.arcalot.io/kubernetesdeployer v0.9.1 h1:AGnJFazehAENXxGMCF0Uc7aG9F0LpvuhoyQFu8deJG0=
 go.flow.arcalot.io/kubernetesdeployer v0.9.1/go.mod h1:yvxT3VwmyrlIi4422pxl02z4QeU2Gvbjg5aQB17Ye4s=
 go.flow.arcalot.io/pluginsdk v0.12.0 h1:NJyPMluwtljsNjEEewCeuxE2dGuAJn89KvU52o9OAvU=
diff --git a/workflow/workflow_test.go b/workflow/workflow_test.go
index 657b91e2..dc8bb471 100644
--- a/workflow/workflow_test.go
+++ b/workflow/workflow_test.go
@@ -1328,6 +1328,45 @@ func TestDelayedDisabledStepWorkflow(t *testing.T) {
 	assert.Equals(t, toggledOutputMap["message"], "Step toggled_wait/wait disabled")
 }
 
+var testExpressionWithExtraWhitespace = `
+version: v0.2.0
+input:
+  root: RootObject
+  objects:
+    RootObject:
+      id: RootObject
+      properties: {}
+steps:
+  wait_1:
+    plugin:
+      src: "n/a"
+      deployment_type: "builtin"
+    step: wait
+    input:
+      wait_time_ms: 0
+outputs:
+  a:
+    leading-whitespace: !expr "    $.steps.wait_1.outputs.success.message"
+    trailing-whitespace: !expr "$.steps.wait_1.outputs.success.message     "
+    # Use | instead of |- to keep the newline at the end.
+    trailing-newline: !expr |
+      $.steps.wait_1.outputs.success.message
+`
+
+func TestExpressionWithWhitespace(t *testing.T) {
+	preparedWorkflow := assert.NoErrorR[workflow.ExecutableWorkflow](t)(
+		getTestImplPreparedWorkflow(t, testExpressionWithExtraWhitespace),
+	)
+	outputID, outputData, err := preparedWorkflow.Execute(context.Background(), map[string]any{})
+	assert.NoError(t, err)
+	assert.Equals(t, outputID, "a")
+	assert.Equals(t, outputData.(map[any]any), map[any]any{
+		"leading-whitespace":  "Plugin slept for 0 ms.",
+		"trailing-whitespace": "Plugin slept for 0 ms.",
+		"trailing-newline":    "Plugin slept for 0 ms.",
+	})
+}
+
 func createTestExecutableWorkflow(t *testing.T, workflowStr string, workflowCtx map[string][]byte) (workflow.ExecutableWorkflow, error) {
 	logConfig := log.Config{
 		Level:       log.LevelDebug,