diff --git a/.github/scripts/build-image.sh b/.github/scripts/build-image.sh
index 60afc04..6e82051 100755
--- a/.github/scripts/build-image.sh
+++ b/.github/scripts/build-image.sh
@@ -5,7 +5,7 @@ IMAGE=$1
 
 echo "Building $IMAGE"
 
-DEFAULT_UBUNTU_VERSION="24.04"
+DEFAULT_UBUNTU_VERSION="26.04"
 # renovate: datasource=github-releases depName=canonical/chisel
 DEFAULT_CHISEL_VERSION="v1.4.1"
 
diff --git a/images/jellyfin/Dockerfile b/images/jellyfin/Dockerfile
index 150ed3d..7f116f7 100644
--- a/images/jellyfin/Dockerfile
+++ b/images/jellyfin/Dockerfile
@@ -43,7 +43,7 @@ RUN --mount=type=secret,id=UBUNTU_PRO_CREDS,target=/etc/apt/auth.conf.d/90ubuntu
     && curl \
         --location \
         --remote-name \
-        https://repo.jellyfin.org/files/ffmpeg/ubuntu/7.x/${FFMPEG_VERSION}/${TARGETARCH}/jellyfin-ffmpeg7_${FFMPEG_VERSION}-noble_${TARGETARCH}.deb \
+        https://repo.jellyfin.org/files/ffmpeg/ubuntu/7.x/${FFMPEG_VERSION}/${TARGETARCH}/jellyfin-ffmpeg7_${FFMPEG_VERSION}-resolute_${TARGETARCH}.deb \
     && dpkg --extract jellyfin-ffmpeg7_*.deb /jellyfin \
     \
     # Prepare jellyfin-ffmpeg dependencies list \
@@ -64,7 +64,8 @@ RUN --mount=type=secret,id=UBUNTU_PRO_CREDS,target=/etc/apt/auth.conf.d/90ubuntu
         base-files_chisel \
         ca-certificates_data \
         # jellyfin dependencies \
-        dotnet-runtime-8.0_libs \
+        dotnet-runtime-10.0_core \
+        libicu78_libs \
         libsqlite3-0_libs \
         # jellyfin-ffmpeg dependencies \
         ${FFMPEG_DEPS} \
diff --git a/images/lidarr/Dockerfile b/images/lidarr/Dockerfile
index 1cc9102..8fea6c3 100644
--- a/images/lidarr/Dockerfile
+++ b/images/lidarr/Dockerfile
@@ -25,7 +25,7 @@ RUN --mount=type=secret,id=UBUNTU_PRO_CREDS,target=/etc/apt/auth.conf.d/90ubuntu
         base-files_chisel \
         ca-certificates_data \
         # lidarr dependencies \
-        libicu74_libs \
+        libicu78_libs \
         libsqlite3-0_libs \
         libssl3t64_libs \
         zlib1g_libs \
diff --git a/images/prowlarr/Dockerfile b/images/prowlarr/Dockerfile
index daa015b..1eda346 100644
--- a/images/prowlarr/Dockerfile
+++ b/images/prowlarr/Dockerfile
@@ -25,7 +25,7 @@ RUN --mount=type=secret,id=UBUNTU_PRO_CREDS,target=/etc/apt/auth.conf.d/90ubuntu
         base-files_chisel \
         ca-certificates_data \
         # prowlarr dependencies \
-        libicu74_libs \
+        libicu78_libs \
         libsqlite3-0_libs \
         libssl3t64_libs \
         zlib1g_libs \
diff --git a/images/radarr/Dockerfile b/images/radarr/Dockerfile
index c6d551a..9efcb06 100644
--- a/images/radarr/Dockerfile
+++ b/images/radarr/Dockerfile
@@ -25,7 +25,7 @@ RUN --mount=type=secret,id=UBUNTU_PRO_CREDS,target=/etc/apt/auth.conf.d/90ubuntu
         base-files_chisel \
         ca-certificates_data \
         # radarr dependencies \
-        libicu74_libs \
+        libicu78_libs \
         libsqlite3-0_libs \
         libssl3t64_libs \
         zlib1g_libs \
diff --git a/images/sonarr/Dockerfile b/images/sonarr/Dockerfile
index 4c86569..532ae55 100644
--- a/images/sonarr/Dockerfile
+++ b/images/sonarr/Dockerfile
@@ -25,7 +25,7 @@ RUN --mount=type=secret,id=UBUNTU_PRO_CREDS,target=/etc/apt/auth.conf.d/90ubuntu
         base-files_chisel \
         ca-certificates_data \
         # sonarr dependencies \
-        libicu74_libs \
+        libicu78_libs \
         libsqlite3-0_libs \
         libssl3t64_libs \
         zlib1g_libs \