diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3564fc609c085173c223b826be20ca23efe56032..060f4d34978c1076d7d44bda15a954f56a239493 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,9 +33,3 @@ iris-coq8.6.1:
     paths:
     - build-time.txt
     - build-env.txt
-
-iris-coq8.6:
-  <<: *template
-  variables:
-    COQ_VERSION: "8.6"
-    SSR_VERSION: "1.6.1"
diff --git a/README.md b/README.md
index 0dcf568c402450a918659dcb92d7389894b2077b..1a6ee6f3f6631b61b047dbda657a7e1e6ef9862c 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ This is the Coq development of the [Iris Project](http://iris-project.org).
 
 This version is known to compile with:
 
- - Coq 8.6
+ - Coq 8.6.1
  - Ssreflect 1.6.1
  - A development version of [std++](https://gitlab.mpi-sws.org/robbertkrebbers/coq-stdpp)
 
diff --git a/opam b/opam
index bb91590c641931f158991ed81188c5b7d746755b..aaaa1597213176b5ae59b84cdc94bcf9dd0a0929 100644
--- a/opam
+++ b/opam
@@ -13,7 +13,7 @@ build: [
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/iris'" ]
 depends: [
-  "coq" { (>= "8.6" & < "8.7~") } # replace with (= "dev") if you want to test against a development version of Coq
+  "coq" { (>= "8.6.1" & < "8.7~") } # replace with (= "dev") if you want to test against a development version of Coq
   "coq-mathcomp-ssreflect" { ((>= "1.6.1" & < "1.7~") | (= "dev")) }
   "coq-stdpp"
 ]
diff --git a/theories/proofmode/notation.v b/theories/proofmode/notation.v
index 562d19ee756326a4c86302b492db8f1fa598a2b1..bd4273137e2f8a9dadca887450ec6ef819a81028 100644
--- a/theories/proofmode/notation.v
+++ b/theories/proofmode/notation.v
@@ -7,7 +7,7 @@ Arguments Envs _ _%proof_scope _%proof_scope.
 Arguments Enil {_}.
 Arguments Esnoc {_} _%proof_scope _%string _%uPred_scope.
 
-Notation "​" := Enil (format "​", only printing) : proof_scope.
+Notation "" := Enil (format "", only printing) : proof_scope.
 Notation "Γ H : P" := (Esnoc Γ H P)
   (at level 1, P at level 200,
    left associativity, format "Γ H  :  P '//'", only printing) : proof_scope.