diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 234c037c0..77ad03b92 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,7 +7,7 @@ on:
 
 env:
   # renovate: datasource=github-tags depName=rust lookupName=rust-lang/rust
-  RUST_VERSION: 1.88.0
+  RUST_VERSION: 1.91.0
 
 jobs:
   lint:
diff --git a/.github/workflows/snapshot_tests.yml b/.github/workflows/snapshot_tests.yml
index 8d2da3d72..d703d983c 100644
--- a/.github/workflows/snapshot_tests.yml
+++ b/.github/workflows/snapshot_tests.yml
@@ -4,7 +4,7 @@ on:
 
 env:
   # renovate: datasource=github-tags depName=rust lookupName=rust-lang/rust
-  RUST_VERSION: 1.88.0
+  RUST_VERSION: 1.91.0
 
 jobs:
   snapshot-tests: