diff --git a/lib/vector-config/src/external/serde_with.rs b/lib/vector-config/src/external/serde_with.rs
index 05de17e3bf605..30267e2253943 100644
--- a/lib/vector-config/src/external/serde_with.rs
+++ b/lib/vector-config/src/external/serde_with.rs
@@ -50,7 +50,7 @@ where
 impl Configurable for serde_with::DurationSeconds<u64, serde_with::formats::Strict> {
     fn referenceable_name() -> Option<&'static str> {
         // We're masking the type parameters here because we only deal with whole seconds via this
-        // version, and handle fractional seconds with `DurationSeconds<f64, Strict>`, which we
+        // version, and handle fractional seconds with `DurationSecondsWithFrac<f64, Strict>`, which we
         // expose as `serde_with::DurationFractionalSeconds`.
         Some("serde_with::DurationSeconds")
     }
@@ -76,7 +76,7 @@ impl Configurable for serde_with::DurationSeconds<u64, serde_with::formats::Stri
     }
 }
 
-impl Configurable for serde_with::DurationSeconds<f64, serde_with::formats::Strict> {
+impl Configurable for serde_with::DurationSecondsWithFrac<f64, serde_with::formats::Strict> {
     fn referenceable_name() -> Option<&'static str> {
         // We're masking the type parameters here because we only deal with fractional seconds via this
         // version, and handle whole seconds with `DurationSeconds<u64, Strict>`, which we
diff --git a/src/sources/demo_logs.rs b/src/sources/demo_logs.rs
index fa92cd3ac0681..9d0454ed4f933 100644
--- a/src/sources/demo_logs.rs
+++ b/src/sources/demo_logs.rs
@@ -48,7 +48,7 @@ pub struct DemoLogsConfig {
     #[derivative(Default(value = "default_interval()"))]
     #[serde(default = "default_interval")]
     #[configurable(metadata(docs::examples = 1.0, docs::examples = 0.1, docs::examples = 0.01,))]
-    #[serde_as(as = "serde_with::DurationSeconds<f64>")]
+    #[serde_as(as = "serde_with::DurationSecondsWithFrac<f64>")]
     pub interval: Duration,
 
     /// The total number of lines to output.
diff --git a/src/sources/gcp_pubsub.rs b/src/sources/gcp_pubsub.rs
index d38688592d4fd..b92062553f4cd 100644
--- a/src/sources/gcp_pubsub.rs
+++ b/src/sources/gcp_pubsub.rs
@@ -162,7 +162,7 @@ pub struct PubsubConfig {
     /// How often to poll the currently active streams to see if they
     /// are all busy and so open a new stream.
     #[serde(default = "default_poll_time")]
-    #[serde_as(as = "serde_with::DurationSeconds<f64>")]
+    #[serde_as(as = "serde_with::DurationSecondsWithFrac<f64>")]
     #[configurable(metadata(docs::human_name = "Poll Time"))]
     pub poll_time_seconds: Duration,
 
@@ -184,7 +184,7 @@ pub struct PubsubConfig {
 
     /// The amount of time, in seconds, to wait between retry attempts after an error.
     #[serde(default = "default_retry_delay")]
-    #[serde_as(as = "serde_with::DurationSeconds<f64>")]
+    #[serde_as(as = "serde_with::DurationSecondsWithFrac<f64>")]
     #[configurable(metadata(docs::human_name = "Retry Delay"))]
     pub retry_delay_secs: Duration,
 
@@ -198,7 +198,7 @@ pub struct PubsubConfig {
     /// before sending a keepalive request. If this is set larger than
     /// `60`, you may see periodic errors sent from the server.
     #[serde(default = "default_keepalive")]
-    #[serde_as(as = "serde_with::DurationSeconds<f64>")]
+    #[serde_as(as = "serde_with::DurationSecondsWithFrac<f64>")]
     #[configurable(metadata(docs::human_name = "Keepalive"))]
     pub keepalive_secs: Duration,
 
diff --git a/src/sources/internal_metrics.rs b/src/sources/internal_metrics.rs
index ddf09afb095cc..6ae574436160a 100644
--- a/src/sources/internal_metrics.rs
+++ b/src/sources/internal_metrics.rs
@@ -27,7 +27,7 @@ use crate::{
 #[serde(deny_unknown_fields, default)]
 pub struct InternalMetricsConfig {
     /// The interval between metric gathering, in seconds.
-    #[serde_as(as = "serde_with::DurationSeconds<f64>")]
+    #[serde_as(as = "serde_with::DurationSecondsWithFrac<f64>")]
     #[serde(default = "default_scrape_interval")]
     #[configurable(metadata(docs::human_name = "Scrape Interval"))]
     pub scrape_interval_secs: Duration,
diff --git a/src/transforms/throttle.rs b/src/transforms/throttle.rs
index 740e99477bc2f..9c64f95a7d3cc 100644
--- a/src/transforms/throttle.rs
+++ b/src/transforms/throttle.rs
@@ -30,7 +30,7 @@ pub struct ThrottleConfig {
     threshold: u32,
 
     /// The time window in which the configured `threshold` is applied, in seconds.
-    #[serde_as(as = "serde_with::DurationSeconds<f64>")]
+    #[serde_as(as = "serde_with::DurationSecondsWithFrac<f64>")]
     #[configurable(metadata(docs::human_name = "Time Window"))]
     window_secs: Duration,