diff --git a/environments/huggingface.yml b/environments/huggingface.yml
index 77f239b4..a841e630 100644
--- a/environments/huggingface.yml
+++ b/environments/huggingface.yml
@@ -23,6 +23,6 @@ dependencies:
     - flask-cloudflared
     - flask-ngrok
     - lupa==1.10
-    - transformers>=4.20.1
+    - transformers==4.21.3
     - accelerate
-    - loguru
+    - loguru
\ No newline at end of file
diff --git a/environments/rocm.yml b/environments/rocm.yml
index 142d4230..5aee0dca 100644
--- a/environments/rocm.yml
+++ b/environments/rocm.yml
@@ -23,5 +23,5 @@ dependencies:
     - flask-cloudflared
     - flask-ngrok
     - lupa==1.10
-    - transformers>=4.20.1
+    - transformers==4.21.3 
     - accelerate
diff --git a/requirements.txt b/requirements.txt
index 4923a140..260858ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-transformers>=4.20.1
+transformers==4.21.3 
 Flask
 Flask-SocketIO
 requests
diff --git a/requirements_mtj.txt b/requirements_mtj.txt
index ebdd5d98..cfbb7cad 100644
--- a/requirements_mtj.txt
+++ b/requirements_mtj.txt
@@ -6,7 +6,7 @@ optax >= 0.0.5, <= 0.0.9
 dm-haiku == 0.0.5
 jax == 0.2.21
 jaxlib >= 0.1.69, <= 0.3.7
-transformers >= 4.19
+transformers == 4.21.3
 progressbar2
 git+https://github.com/VE-FORBRYDERNE/mesh-transformer-jax@ck
 flask