diff --git a/Cargo.lock b/Cargo.lock
index 82468dd..f727d2c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -910,9 +910,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "openmetrics-parser"
-version = "0.4.2"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fa1075b40b84d04375a1dcb39e5726c4ac3aee06cc036e60e5b4e636aaba86f"
+checksum = "e40a68c62e09c5dfec2f6472af3bd5e8ddf506fcf14c78ece23794ffbb874eca"
 dependencies = [
  "auto_ops",
  "pest",
diff --git a/Cargo.toml b/Cargo.toml
index e11c0e8..c0f63eb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ keywords = ["openmetrics", "prometheus", "pushgateway"]
 [dependencies]
 tokio = { version = "1", features = ["full"] }
 warp = "0.3"
-openmetrics-parser = "0.4.2"
+openmetrics-parser = "0.4.4"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 clap = "2.33.3"
diff --git a/src/aggregator_test.rs b/src/aggregator_test.rs
index 6535419..975e6ba 100644
--- a/src/aggregator_test.rs
+++ b/src/aggregator_test.rs
@@ -228,3 +228,19 @@ number_of_transactions_total{label=\"value\"} 1
 
     assert!(result.is_ok(), "failed to parse valid metric: {:?}", result.err());
 }
+
+#[tokio::test]
+async fn test_openmetrics_parser_2() {
+    // https://github.com/sinkingpoint/openmetrics-parser/issues/2
+
+    let mut agg = Aggregator::new();
+    let result = agg.parse_and_merge("example_test_counter_total{foo=\"bar\"} 0
+", &HashMap::new()).await;
+
+    assert!(result.is_ok(), "failed to parse valid metric: {:?}", result.err());
+
+    let result = agg.parse_and_merge("example_test_counter_total{foo=\"bar\"} 0.01
+", &HashMap::new()).await;
+
+    assert!(result.is_ok(), "failed to parse valid metric: {:?}", result.err());
+}