diff --git a/.github/config/muted_ya.txt b/.github/config/muted_ya.txt
index 2a6da58b31aa..0dcd057e89a0 100644
--- a/.github/config/muted_ya.txt
+++ b/.github/config/muted_ya.txt
@@ -1,4 +1,3 @@
-ydb/core/blobstorage/dsproxy/ut TDSProxyPutTest.TestBlock42PutStatusOkWith_1_1_VdiskErrors
 ydb/core/blobstorage/pdisk/ut RDMA.ChunkWriteDifferentOffsetAndSize
 ydb/core/blobstorage/ut_blobstorage BlobPatching.PatchBlock42
 ydb/core/blobstorage/ut_blobstorage CountingEvents.Collect_Mirror3of4
diff --git a/ydb/core/blobstorage/dsproxy/ut/dsproxy_env_mock_ut.h b/ydb/core/blobstorage/dsproxy/ut/dsproxy_env_mock_ut.h
index 0a50c410836d..ba6ae38a88d3 100644
--- a/ydb/core/blobstorage/dsproxy/ut/dsproxy_env_mock_ut.h
+++ b/ydb/core/blobstorage/dsproxy/ut/dsproxy_env_mock_ut.h
@@ -147,6 +147,10 @@ struct TDSProxyEnv {
                     .TimeStatsEnabled = Mon->TimeStats.IsEnabled(),
                     .Stats = PerDiskStatsPtr,
                     .EnableRequestMod3x3ForMinLatency = false,
+                    .AccelerationParams = {
+                        // disable slow disk logic to avoid inconsistent accelerations
+                        .SlowDiskThreshold = 1'000'000'000,
+                    },
                     .LongRequestThreshold = TDuration::Seconds(1),
                 }));
     }