diff --git a/projects/ubuntu-26.04/Dockerfile b/projects/ubuntu-26.04/Dockerfile
index 6cd77ca..a69a175 100644
--- a/projects/ubuntu-26.04/Dockerfile
+++ b/projects/ubuntu-26.04/Dockerfile
@@ -36,20 +36,7 @@ RUN wget -qO - https://packages.irods.org/irods-signing-key.asc | \
             --import \
         && \
     echo "deb [signed-by=/etc/apt/keyrings/renci-irods-archive-keyring.pgp arch=amd64] https://packages.irods.org/apt/ resolute main" | \
-        tee /etc/apt/sources.list.d/renci-irods.list && \
-    wget -qO - https://core-dev.irods.org/irods-core-dev-signing-key.asc | \
-        gpg \
-            --no-options \
-            --no-default-keyring \
-            --no-auto-check-trustdb \
-            --homedir /dev/null \
-            --no-keyring \
-            --import-options import-export \
-            --output /etc/apt/keyrings/renci-irods-core-dev-archive-keyring.pgp \
-            --import \
-        && \
-    echo "deb [signed-by=/etc/apt/keyrings/renci-irods-core-dev-archive-keyring.pgp arch=amd64] https://core-dev.irods.org/apt/ resolute main" | \
-        tee /etc/apt/sources.list.d/renci-irods-core-dev.list
+        tee /etc/apt/sources.list.d/renci-irods.list
 
 RUN apt-get update && \
     apt-get install -y \