diff --git a/src/Prometheus.Client.HttpRequestDurations/Prometheus.Client.HttpRequestDurations.csproj b/src/Prometheus.Client.HttpRequestDurations/Prometheus.Client.HttpRequestDurations.csproj
index 2460718..f7c8e67 100644
--- a/src/Prometheus.Client.HttpRequestDurations/Prometheus.Client.HttpRequestDurations.csproj
+++ b/src/Prometheus.Client.HttpRequestDurations/Prometheus.Client.HttpRequestDurations.csproj
@@ -3,7 +3,7 @@
Metrics logging of request durations for the Prometheus.Client
2020 © Serge K, Oleksandr Poliakov
Prometheus.Client.HttpRequestDurations
- 4.1.0
+ 3.1.0
Serge K, Oleksandr Poliakov
netstandard2.0;netstandard2.1;netcoreapp2.2;netcoreapp3.1
Prometheus.Client.HttpRequestDurations