diff --git a/docker/Dockerfile.proxy b/docker/Dockerfile.proxy
index 84853c89..6fa516ea 100644
--- a/docker/Dockerfile.proxy
+++ b/docker/Dockerfile.proxy
@@ -5,6 +5,7 @@ ARG EXTRA_BUILD_ARGS
 ARG FIPS_MODE
 
 RUN apt update -y
+RUN apt upgrade -y
 RUN apt install -y build-essential ca-certificates python3 git
 
 WORKDIR /code
@@ -17,9 +18,10 @@ RUN bash -c 'if [[ "${FIPS_MODE}" = "enabled" ]]; \
     fi'
 
 # Runner stage
-FROM debian:12.5 AS runner
+FROM debian:12.5-slim AS runner
 
 RUN apt update -y
+RUN apt upgrade -y
 RUN apt install -y bash ca-certificates
 RUN addgroup --gid 1000 --system 'split-proxy'
 RUN adduser \
diff --git a/docker/Dockerfile.synchronizer b/docker/Dockerfile.synchronizer
index d500af55..6ceb45f5 100644
--- a/docker/Dockerfile.synchronizer
+++ b/docker/Dockerfile.synchronizer
@@ -17,9 +17,10 @@ RUN bash -c 'if [[ "${FIPS_MODE}" = "enabled" ]]; \
     fi'
 
 # Runner stage
-FROM debian:12.5 AS runner
+FROM debian:12.5-slim AS runner
 
 RUN apt update -y
+RUN apt upgrade -y
 RUN apt install -y bash ca-certificates
 RUN addgroup --gid 1000 --system 'split-synchronizer'
 RUN adduser \
diff --git a/splitio/version.go b/splitio/version.go
index 0e25613e..1ce81787 100644
--- a/splitio/version.go
+++ b/splitio/version.go
@@ -2,4 +2,4 @@
 package splitio
 
 // Version is the version of this Agent
-const Version = "5.8.0"
+const Version = "5.8.1-alpha1"