diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 54186ef60c931bcb5f613f6843e0120a095b80e2..976d5147ba7b96f6f5b39052953260335c10005f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,7 @@ stages:
 
 variables:
   CPU_CORES: "10"
-  OCAML: "ocaml-base-compiler.4.14.0"
+  OCAML: "ocaml-variants.4.14.0+options ocaml-option-flambda"
 
 .only_branches: &only_branches
   only:
@@ -42,19 +42,12 @@ variables:
 
 ## Build jobs
 
-build-coq.8.15.0:
+build-coq.8.15.1:
   <<: *template
   variables:
-    OPAM_PINS: "coq version 8.15.0"
+    OPAM_PINS: "coq version 8.15.1"
     DENY_WARNINGS: "1"
     MANGLE_NAMES: "1"
-
-build-coq.8.14.1:
-  <<: *template
-  variables:
-    OPAM_PINS: "coq version 8.14.1"
-    MANGLE_NAMES: "1"
-    DENY_WARNINGS: "1"
     OPAM_PKG: "1"
     DOC_DIR: "coqdoc@center.mpi-sws.org:iris"
     DOC_OPTS: "--external https://plv.mpi-sws.org/coqdoc/stdpp/ stdpp"
@@ -62,14 +55,14 @@ build-coq.8.14.1:
   - fp-timing
   interruptible: false
 
-# Separate MR job that does not run on fp-timing.
-build-coq.8.14.1-mr:
+build-coq.8.14.1:
   <<: *template
-  <<: *only_mr
+  <<: *branches_and_mr
   variables:
     OPAM_PINS: "coq version 8.14.1"
     MANGLE_NAMES: "1"
     DENY_WARNINGS: "1"
+    OCAML: "ocaml-base-compiler.4.07.1"
 
 build-coq.8.13.2:
   <<: *template
@@ -77,14 +70,15 @@ build-coq.8.13.2:
   variables:
     OPAM_PINS: "coq version 8.13.2"
     DENY_WARNINGS: "1"
+    OCAML: "ocaml-base-compiler.4.07.1"
 
 # Nightly job with a known-to-work Coq version
 # (so failures must be caused by std++)
-trigger-stdpp.dev-coq.8.14.1:
+trigger-stdpp.dev-coq.8.15.1:
   <<: *template
   variables:
     STDPP_REPO: "iris/stdpp"
-    OPAM_PINS: "coq version 8.14.1   git+https://gitlab.mpi-sws.org/$STDPP_REPO#$STDPP_REV"
+    OPAM_PINS: "coq version 8.15.1   git+https://gitlab.mpi-sws.org/$STDPP_REPO#$STDPP_REV"
   except:
   only:
   - triggers
diff --git a/README.md b/README.md
index 16381ca1b9cfc3631147d731aa8d16b7afde4006..80570b58a605007ddff6e89cdc55bfbe43346ee2 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Importing Iris has some side effects as the library sets some global options.
 
 This version is known to compile with:
 
- - Coq 8.13.2 / 8.14.1 / 8.15.0
+ - Coq 8.13.2 / 8.14.1 / 8.15.1
  - A development version of [std++](https://gitlab.mpi-sws.org/iris/stdpp)
 
 If you need to work with older versions of Coq, you can check out the