diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cb32823984948e282a328e27a53080d53116f0ae..0f0eb1781f27ca2d4fc86e60c2fb920bdd87d700 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,8 +1,6 @@
 image: ralfjung/opam-ci:latest
 
 lrust-coq8.5.3:
-  tags:
-  - coq
   script:
   # prepare
   - . build/opam-ci.sh 'coq 8.5.3' 'coq-mathcomp-ssreflect 1.6'
diff --git a/README.md b/README.md
index 506e6393bda59a114c57dea136d5da5c847d8140..3deb87fc4594130a13eb924fcae3f82ec39e036a 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,11 @@ the `opam.pins` file.
 ## Building Instructions
 
 Run `make` to build the full development.
+
+## For Developers: How to update the Iris dependency
+
+- Do the change in Iris, push it.
+- In lambdaRust, change opam.pins to point to the new commit.
+- Run "make build-dep" (in lambdaRust) to install the new version of Iris.
+- You may have to do "make clean" as Coq will likely complain about .vo file
+  mismatches.