diff --git a/Dockerfile b/Dockerfile
index f419b50..a9ee4cf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -604,9 +604,9 @@ RUN \
 # bump: srt /SRT_VERSION=([\d.]+)/ https://github.com/Haivision/srt.git|^1
 # bump: srt after ./hashupdate Dockerfile SRT $LATEST
 # bump: srt link "Release notes" https://github.com/Haivision/srt/releases/tag/v$LATEST
-ARG SRT_VERSION=1.5.4
+ARG SRT_VERSION=1.5.5
 ARG SRT_URL="https://github.com/Haivision/srt/archive/v$SRT_VERSION.tar.gz"
-ARG SRT_SHA256=d0a8b600fe1b4eaaf6277530e3cfc8f15b8ce4035f16af4a5eb5d4b123640cdd
+ARG SRT_SHA256=c3518bc43a71b5289032395b2db4c3e09e73d78b54247d56c14553a503b491cf
 RUN \
   wget $WGET_OPTS -O libsrt.tar.gz "$SRT_URL" && \
   echo "$SRT_SHA256  libsrt.tar.gz" | sha256sum -c - && \